How do I know if my tattoo is infected?

Your tattoo is likely infected if you see redness expanding beyond the wound edge after day 3, increasing pain rather than decreasing pain, yellow or green pus, fever, red streaks moving away from the site, or worsening swelling. Normal healing produces some redness, warmth, and tenderness in the first 2 to 3 days that steadily improves. A trajectory that gets worse after day 3 is the key clue.

How do I know if my piercing is infected?

Your piercing is infected if redness expands beyond the immediate piercing site, pain increases after the first 2 to 3 days, the site produces yellow or green pus, you develop a fever, you see red streaks moving away from the wound, or (for cartilage piercings) the surrounding cartilage becomes red, warm, and painful. Clear or pinkish drainage and mild crusting in the first few days are normal.

Can I swim with a new tattoo or piercing?

You should not swim in pools, lakes, hot tubs, or the ocean until your tattoo or piercing is fully healed. The healing timeline is 2 to 4 weeks for tattoos, 6 to 8 weeks for earlobe piercings, and 6 to 12 months for cartilage piercings. Open or healing wounds in untreated water meaningfully raise the risk of Pseudomonas and other water-loving bacteria. Showering is fine; submersion is not.

How do I know if my tattoo is infected?

Your tattoo is likely infected if you see redness expanding beyond the wound edge after day 3, increasing pain rather than decreasing pain, yellow or green pus, fever, red streaks moving away from the site, or worsening swelling. Normal healing produces some redness, warmth, and tenderness in the first 2 to 3 days that steadily improves. A trajectory that gets worse after day 3 is the key clue.

How do I know if my piercing is infected?

Your piercing is infected if redness expands beyond the immediate piercing site, pain increases after the first 2 to 3 days, the site produces yellow or green pus, you develop a fever, you see red streaks moving away from the wound, or (for cartilage piercings) the surrounding cartilage becomes red, warm, and painful. Clear or pinkish drainage and mild crusting in the first few days are normal.

Can I swim with a new tattoo or piercing?

You should not swim in pools, lakes, hot tubs, or the ocean until your tattoo or piercing is fully healed. The healing timeline is 2 to 4 weeks for tattoos, 6 to 8 weeks for earlobe piercings, and 6 to 12 months for cartilage piercings. Open or healing wounds in untreated water meaningfully raise the risk of Pseudomonas and other water-loving bacteria. Showering is fine; submersion is not.

TL;DR · 30-second take

Most fresh tattoos and piercings look angry in the first few days. Real infection has a different pattern: redness that expands beyond the wound, pus, fever, increasing pain after day 3, or red streaks moving away from the site. Cartilage piercings (helix, tragus, conch) deserve a lower threshold to call because Pseudomonas perichondritis can destroy ear cartilage in days. Photo triage by text usually sorts it in minutes.

Is My Tattoo or Piercing Infected? A Doctor's Guide to Telling It Apart

TL;DR: Most fresh body modifications look angry in the first few days. Real infection has a different pattern: expanding redness beyond the wound, increasing pain after day 3, yellow or green pus, fever, or red streaks. Cartilage piercings are a special case because Pseudomonas perichondritis can destroy cartilage in days; a lower threshold to call applies. Photo triage by text usually sorts it in minutes.

"The texts I get from patients about a new tattoo or piercing follow a predictable pattern. Day 1 to 2: 'It's red and warm.' That is usually fine. Day 3 onward: 'It's worse than yesterday.' That is the moment that matters. A photo plus the timeline usually gets us an answer in 5 minutes."

A 26-year-old patient texted me on a Tuesday with a photo of her new helix piercing. Pierced Saturday at a reputable Fishtown shop. By Tuesday morning, the upper ear was red, hot, and starting to swell beyond the piercing site. She was running a low fever. That is not the pattern of normal healing. We started oral ciprofloxacin within 2 hours, and by Friday the redness was retreating. Caught a day later, she could have lost cartilage. The decision was the timeline, not the procedure. This article walks through what is normal, what is not, the cartilage-piercing exception, and when to call a clinician.

What Does Normal Healing Look Like?

Normal healing of a fresh tattoo or piercing produces some redness, warmth, mild swelling, and discomfort in the first 2 to 3 days. The pattern from there is steady improvement day over day. The differences between normal healing and infection are timing and trajectory, not just appearance on day 1. Normal tattoo healing timeline:

Days 1 to 3: Mild redness, warmth, swelling, and oozing of plasma or ink. The tattoo may look raised. This is appropriate inflammation.
Days 4 to 7: Redness fades. Surface starts to peel and itch (the "tattoo dandruff" stage). Do not pick.
Weeks 2 to 4: The deeper layers continue to heal. The tattoo may look slightly cloudy or shiny.
Weeks 4 to 8: Final settling. The tattoo reaches its true color.

Normal piercing healing timeline:

Days 1 to 5: Tenderness, mild swelling, some clear or pinkish drainage. Crust forming around the jewelry is normal.
Weeks 2 to 6: Tenderness fades. Mild crusting continues. The tunnel is still forming.
Months 1 to 12: Full healing depends on location. Earlobes: 6 to 8 weeks. Cartilage (helix, tragus, conch, industrial): 6 to 12 months. Nipple, navel, genital: 6 to 12+ months.

Any of these timelines can shift if there is an infection.

What Are the Real Signs of Infection?

Real infection has a recognizable signature that differs from normal healing. The key features:

Expanding redness beyond the wound edge after day 3. Normal redness stays close to the site and fades. Spreading redness suggests cellulitis.
Increasing pain after the first 48 to 72 hours, rather than decreasing. The first day or two is the most painful; pain should trend down from there.
Yellow, green, or thick pus. Clear or pinkish drainage in the first few days is normal. Yellow or green is not.
Red streaks moving away from the wound. This is lymphangitis (infection spreading along lymphatic channels) and is a same-day call.
Fever, chills, or feeling systemically unwell. Local skin infection that has become systemic.
Foul smell from the site.
Worsening swelling after day 3.
The wound area becoming hard, warm, and fluctuant (suggesting an abscess).

Any one of these warrants a clinician message within 24 hours. Two or more warrants same-day evaluation.

The Cartilage Piercing Exception

Cartilage piercings deserve a lower threshold to call than any other body modification. The combination of poor blood supply, the bacterial preference of Pseudomonas aeruginosa for cartilage tissue, and the speed at which cartilage can die makes ear and nose cartilage infections genuinely time-sensitive. The clinical entity is perichondritis (infection of the connective tissue around the cartilage), which can progress to chondritis (infection of the cartilage itself) and necrosis (cartilage death). The most common organism is Pseudomonas aeruginosa, followed by Staphylococcus aureus (including MRSA). Key points:

Helix, tragus, conch, industrial, daith, rook, and nostril piercings all carry cartilage involvement.
Earlobe piercings are NOT cartilage and have a much lower infection risk profile.
Treatment requires antibiotics that cover Pseudomonas, typically a fluoroquinolone like ciprofloxacin. Plain cephalexin (the typical "skin infection antibiotic") does not cover Pseudomonas and will fail.
Untreated perichondritis can produce permanent cartilage deformity ("cauliflower ear") within days.

The clinical rule I use: any new cartilage piercing with expanding redness, warmth, or worsening pain past day 3 gets a same-day call, not a wait-and-see plan. The downside of an early antibiotic course is small; the downside of late treatment is permanent.

Tattoo Ink Outbreaks: A Real but Rare Story

Most tattoo infections are common skin bacteria (Staph, Strep, occasionally Pseudomonas). A smaller and more interesting category is contaminated tattoo ink itself. Between 2011 and 2012, the CDC investigated an outbreak of Mycobacterium chelonae skin infections tied to a specific brand of pre-diluted gray tattoo ink. Cases were reported in New York, Washington, Iowa, and Colorado. The hallmark was a persistent papulopustular rash appearing in the gray-shaded areas of the tattoo 1 to 3 weeks after the procedure, often confined to the gray ink and sparing the rest of the tattoo. Why this matters for triage:

A rash that is confined to one ink color (especially gray) days to weeks after a tattoo is not a typical bacterial infection. It can be a contaminant Mycobacterium, an allergic reaction to that ink, or both.
It does not respond to standard skin antibiotics because Mycobacteria require specific anti-mycobacterial drugs.
It warrants a dermatology referral and biopsy if persistent or atypical.

Red ink allergic reactions are a separate pattern: bumpy, itchy, persistent reaction confined to red areas, often months to years after the tattoo, driven by mercury sulfide and azo dyes in some red pigments. Treatment is topical steroids, intralesional steroids, or (rarely) laser ink removal.

How Should I Care for a New Tattoo or Piercing?

The general framework: For tattoos:

Keep the initial wrap on for the time the artist specifies (typically 4 to 24 hours, or longer for saniderm-style films).
Wash gently with mild fragrance-free soap and lukewarm water 2 times daily.
Pat dry with a clean towel; do not rub.
Apply a thin layer of plain petrolatum (Vaseline or Aquaphor) or a recommended tattoo balm 2 to 3 times daily for the first 1 to 2 weeks. Avoid Neosporin (neomycin contact allergy risk, no benefit over petrolatum; see the Cut at Home guide for the full case).
Avoid sun, pools, lakes, hot tubs, oceans, and tight clothing rubbing the site for at least 2 weeks.
Do not pick scabs. They protect the ink underneath.

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For piercings:

Saline rinses 2 to 3 times daily. Either pre-made sterile saline spray or 1/4 teaspoon of non-iodized sea salt in 1 cup of warm distilled water. Most reputable piercers will give you the protocol.
Do not rotate the jewelry. This was old guidance that is no longer recommended; rotation tears the new tunnel.
Avoid touching the piercing with unwashed hands.
Avoid pools, lakes, hot tubs, and natural water until fully healed (months for cartilage).
Sleep on a clean pillowcase, ideally rotated daily for ear piercings.
Do not use rubbing alcohol, hydrogen peroxide, antibacterial soap, or ointments unless directed by a clinician. They damage the new tissue.

The boring care plan is the high-yield plan.

Guidance from the Clinic

"Most patients who text me a photo on day 2 are fine. Most patients who text me a photo on day 5 with 'it's worse than yesterday' are not. Trajectory matters more than appearance. If your tattoo or piercing is improving every day, you are almost certainly healing. If it is getting worse after day 3, something is off."

When Should I Call a Clinician?

Call a clinician (or text Fishtown Medicine for triage) within 24 hours for:

Cartilage piercing with any redness, warmth, or worsening pain past day 3
Expanding redness beyond the wound edge
Increasing pain after day 3
Yellow, green, or thick pus
Foul smell from the site
Hard, fluctuant swelling suggesting an abscess
A rash confined to one ink color in the days to weeks after a tattoo
Anyone with diabetes, immunosuppression, or active chemotherapy with any concern about a body modification site

Go to urgent care or the emergency department for:

Red streaks moving away from the wound (lymphangitis)
Fever above 101°F with a body modification site of concern
Severe pain disproportionate to what you would expect (rule out necrotizing infection, rare but serious)
Confusion, fast heart rate, low blood pressure (sepsis warning signs)

What About Bloodborne Risks (Hep B, Hep C, HIV)?

Bloodborne infection from a tattoo or piercing is rare with a licensed shop using single-use needles and sterile technique. The categorical risks:

Licensed Pennsylvania shops are required to follow OSHA bloodborne pathogen standards. The risk of hepatitis B, hepatitis C, or HIV transmission is very low.
Unlicensed or "scratcher" tattoos (home tattoos, prison tattoos, parking lot piercings) carry meaningfully higher risk because needle and ink reuse is more common.
Tattoo and piercing artists themselves have higher occupational hepatitis B exposure; hepatitis B vaccination is standard for the profession.

For Pennsylvania patients with recent tattoos at unlicensed sources, baseline hepatitis B and C screening at 3 to 6 months post-procedure is reasonable. The Philadelphia Department of Public Health provides free testing options.

How Fishtown Medicine Approaches Body Mod Triage

At Fishtown Medicine, the workflow for tattoo and piercing concerns is the same as any acute issue: photo plus history by text first. The flow:

Quick photo and timeline by text. When was it done, where, what does it look like now, fever or systemic symptoms.
Triage decision usually within 15 to 30 minutes during waking hours. Most cases get a home-care protocol or a wait-and-watch plan.
Same-day prescription for confirmed bacterial infection. Cartilage piercing infections get ciprofloxacin (Pseudomonas coverage). Skin infections get cephalexin or doxycycline based on the picture and any MRSA history.
Urgent care or ED routing if the picture or symptoms warrant in-person care.
Dermatology referral for atypical rashes, ink reactions, or suspected Mycobacterial contamination.
Follow-up text at 48 and 72 hours to make sure the antibiotic is working.

Most concerns turn out to be normal healing. The ones that are not benefit from being caught early.

Actionable Steps

If you are looking at a body modification right now and not sure.

Take a photo today and a photo tomorrow. Trajectory matters more than any single moment.
Time the timeline. Day 1 to 3 redness is normal. Day 5 worsening is not.
Check for the red flags: expanding redness, increasing pain, yellow/green pus, red streaks, fever, foul smell.
For cartilage piercings, lower the threshold. Any worsening past day 3 is a call.
Skip alcohol, peroxide, antibacterial soap, and Neosporin. Plain petrolatum and saline rinses are the right tools.
Text or call Fishtown Medicine if anything looks off. A 5-minute photo triage beats a 4-hour urgent care visit.

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The Bottom Line

Most fresh tattoos and piercings look angry for the first 2 to 3 days and then steadily improve. Real infection breaks that trajectory: redness expands, pain increases, pus or fever appears. Cartilage piercings are a special case because Pseudomonas perichondritis can destroy ear cartilage in days; a lower threshold to call applies. The boring aftercare plan (gentle wash, plain petrolatum for tattoos, saline rinses for piercings, no rubbing alcohol or peroxide) prevents most infections. The right antibiotic for a cartilage piercing infection is a fluoroquinolone, not standard cephalexin. Most concerns triage well by photo and text.

Key Takeaways

Day 1 to 3 redness and swelling is normal. Day 5 worsening is not.
The infection signature: expanding redness, increasing pain, yellow/green pus, red streaks, fever, foul smell.
Cartilage piercings carry a unique Pseudomonas risk and need fluoroquinolone coverage when infected.
Plain petrolatum and saline beat Neosporin, rubbing alcohol, and peroxide for aftercare.
A photo plus the timeline is usually enough to triage by text within minutes.

Scientific References and Sources

Centers for Disease Control and Prevention. (2012). "Tattoo-Associated Nontuberculous Mycobacterial Skin Infections - Multiple States, 2011-2012." MMWR.
Kennedy BS, Bedard B, Younge M, et al. (2012). "Outbreak of Mycobacterium chelonae Infection Associated with Tattoo Ink." New England Journal of Medicine.
National Library of Medicine. "Pinna Perichondritis." StatPearls. Accessed 2026.
American Academy of Family Physicians. "Complications of Body Piercing." American Family Physician.
Cleveland Clinic. "Perichondritis: Symptoms, Causes & Treatment." Accessed 2026.

Medical Disclaimer: This article provides clinical context for educational purposes. It is not a substitute for individual medical advice. If you have a fresh tattoo or piercing with signs of infection (expanding redness, pus, fever, red streaks, severe pain), contact a clinician within 24 hours. Patients with diabetes, immunosuppression, or active chemotherapy should call the same day for any concern.

Dr. Ash is a board-certified internal medicine physician at Fishtown Medicine in Philadelphia. Practice members get direct text access for photo-and-history triage on tattoos, piercings, cuts, and other acute skin issues.

Frequently Asked Questions

Common Questions

Cartilage piercings are more dangerous than earlobe piercings because the cartilage has poor blood supply and is the preferred tissue for *Pseudomonas aeruginosa*, which causes perichondritis. Perichondritis can progress to chondritis and cartilage necrosis within days, producing permanent deformity ("cauliflower ear"). Earlobes are well-vascularized soft tissue with much lower infection risk and a different bacterial profile.

Cartilage piercing infections are typically treated with a fluoroquinolone antibiotic like ciprofloxacin because it covers *Pseudomonas aeruginosa*, the most common organism. Standard skin antibiotics like cephalexin do NOT cover Pseudomonas and will fail in this setting. Severe infections may require IV antibiotics and surgical drainage. The treatment is time-sensitive because untreated perichondritis can produce permanent cartilage damage.

You should typically NOT remove the jewelry from an infected piercing, despite the intuition to do so. Removing the jewelry can allow the piercing tunnel to close while bacteria remain trapped inside, creating an abscess. The standard approach is to leave the jewelry in place, treat the infection with antibiotics, and let a clinician or piercer assess whether the jewelry needs to be changed or temporarily replaced. The exception is severe infection with abscess; that decision is made in clinic.

You should generally NOT use Neosporin on a new tattoo or piercing. The active ingredient neomycin is a common contact allergen, and the 1996 Smack trial in JAMA showed plain petrolatum is equivalent to bacitracin for infection prevention in clean wounds. For tattoos, a thin layer of plain Vaseline or Aquaphor is the safer default. For piercings, saline rinses are the standard. See the Cut at Home guide for the full case against routine Neosporin.

If only the gray ink in your tattoo is reacting with persistent bumps, papules, or pustules days to weeks after the tattoo, the picture suggests either an *Mycobacterium chelonae* contaminant in the ink or an allergic reaction specifically to the gray pigment. The 2012 CDC outbreak of *M. chelonae* infections was tied to contaminated pre-diluted gray ink. The treatment requires diagnosis (biopsy and culture); standard skin antibiotics do not work for Mycobacteria. Dermatology referral is the right next step.

Deep-Dive Questions

*Pseudomonas aeruginosa* is a particular problem in cartilage piercings because the cartilage tissue has very poor blood supply, which means immune cells and oral antibiotics reach it slowly. Pseudomonas also grows well in moist environments (showers, swimming pools, hot tubs) and produces enzymes that damage cartilage directly. The combination of slow immune response, slow antibiotic delivery, and rapid enzymatic destruction means perichondritis can progress from mild redness to permanent cartilage damage within days.

Cellulitis is a diffuse bacterial infection of the skin and soft tissue that produces expanding redness, warmth, swelling, and tenderness without a discrete fluid collection. An abscess is a walled-off collection of pus that produces a localized, fluctuant (squishy on palpation), often more painful lump. The distinction matters because cellulitis is treated with antibiotics alone, while an abscess usually needs surgical drainage in addition to antibiotics. Ultrasound or a clinical exam separates the two when ambiguous.

*Mycobacterium chelonae* is a water-loving non-tuberculous mycobacterium that lives in tap water, water tanks, and biofilm-coated plumbing. It contaminates tattoo ink either during manufacturing (poor sterile technique, contaminated water used as a diluent) or in the tattoo studio when artists dilute black ink with non-sterile water to create gray. The CDC's recommendation after the 2011-2012 outbreak was that manufacturers ensure sterility and that artists never dilute ink with non-sterile water.

Some red tattoo inks are more prone to allergic reactions because historical and even some current red pigments contain mercury sulfide (cinnabar), cadmium compounds, or specific azo dyes that can sensitize the immune system. Reactions can appear immediately or develop months to years after the tattoo. The clinical picture is bumpy, itchy, persistent inflammation confined to red areas, sparing the rest of the tattoo. Modern red pigments (carbon and iron-based reds) have lower allergy rates but the issue persists.

Healing time depends on location and tissue type. Tattoos heal on the surface in 2 to 4 weeks but the deeper dermal layers continue settling for 6 to 12 weeks. Earlobe piercings heal in 6 to 8 weeks. Cartilage piercings (helix, tragus, conch, industrial) heal in 6 to 12 months due to poor blood supply. Nipple, navel, and genital piercings heal in 6 to 12+ months. "Healed" means the tunnel is fully epithelialized; aftercare should continue for the full timeline regardless of how the site looks externally.

Vaccination protects against the rarest but most serious bloodborne infections. Hepatitis B vaccination is universal in modern US pediatric schedules and standard for tattoo and piercing artists. Tetanus is recommended every 10 years (or every 5 for dirty wounds); a fresh tattoo or piercing is not strictly a tetanus indication unless soil or rust contamination is involved. HPV vaccination is not relevant to body modification. HIV pre-exposure prophylaxis is not standard for tattoo or piercing exposure given the very low real-world transmission rate in licensed shops.

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