Target or Bullseye-Shaped Rash on Baby
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published CDC, AAP, NIH guidelines
Last reviewed:
Baby skin is sensitive and changes frequently. If you are noticing target or bullseye-shaped rash on baby, here is what you need to know.
The short answer
A target or bullseye-shaped rash with concentric rings can indicate erythema multiforme (often triggered by viruses or herpes simplex) or Lyme disease (from a tick bite). Erythema multiforme causes multiple target-shaped lesions on the hands and feet. A single expanding bullseye rash after a tick bite needs prompt evaluation for Lyme disease.
Key takeaways
- A target or bullseye-shaped rash with concentric rings can indicate erythema multiforme (often triggered by viruses or herpes simplex) or Lyme disease (from a tick bite). Erythema multiforme causes multiple target-shaped lesions on the hands and feet. A single expanding bullseye rash after a tick bite needs prompt evaluation for Lyme disease.
- Usually normal when: There is no version of a true target-shaped rash that should be dismissed; all should be evaluated by a healthcare provider
- Call your doctor if: An expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications
- Varies by age — see the age-by-age breakdown below
“Eczema is very common in babies and children. About 1 in 10 children will develop eczema, typically starting in the first few months of life.”
Parents everywhere have the same worry. You are doing the right thing by looking into it.
What Parents Should Know
According to CDC, AAP, NIH guidelines, a target or bullseye-shaped rash with concentric rings can indicate erythema multiforme (often triggered by viruses or herpes simplex) or Lyme disease (from a tick bite). Erythema multiforme causes multiple target-shaped lesions on the hands and feet. A single expanding bullseye rash after a tick bite needs prompt evaluation for Lyme disease. At 0-3 months, target-shaped rashes are very rare in newborns. If one appears, it should be evaluated promptly by your pediatrician to determine the cause. Tick-borne diseases are possible even in very young infants if they spend time outdoors in tick-endemic areas. It is generally considered normal when there is no version of a true target-shaped rash that should be dismissed; all should be evaluated by a healthcare provider. However, you should contact your pediatrician promptly if an expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Target-shaped rashes are very rare in newborns. If one appears, it should be evaluated promptly by your pediatrician to determine the cause. Tick-borne diseases are possible even in very young infants if they spend time outdoors in tick-endemic areas.
3-6 months
Erythema multiforme can occasionally occur in infants, often following a herpes simplex or other viral infection. It presents as distinct target-shaped lesions, often on the hands, feet, and face. If your baby develops these distinctive lesions, see your pediatrician for evaluation and to determine if treatment is needed.
6-12 months
As babies become more mobile and spend time outdoors, tick exposure increases. A single expanding bullseye rash (erythema migrans) at the site of a tick bite is the hallmark of Lyme disease and should be evaluated promptly. Not all Lyme rashes have the classic bullseye appearance, so any expanding rash after a tick bite warrants attention.
12-24 months
Toddlers playing outdoors are at increased risk for tick bites. Erythema migrans from Lyme disease typically appears 3 to 30 days after a tick bite and expands over days. Erythema multiforme from viral triggers can also occur. Target-shaped rashes should always be evaluated, especially in tick-endemic regions.
What to Tell Your Pediatrician
- Describe when you first noticed target or bullseye-shaped rash on baby and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if any rash that has a distinct target or bullseye appearance should be seen by your pediatrician.
- Mention if a rash that appeared at the site of a known or suspected tick bite, even without a classic bullseye pattern.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- There is no version of a true target-shaped rash that should be dismissed; all should be evaluated by a healthcare provider
- Any rash that has a distinct target or bullseye appearance should be seen by your pediatrician
- A rash that appeared at the site of a known or suspected tick bite, even without a classic bullseye pattern
- Multiple target-shaped lesions on the hands and feet following a viral illness
- An expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications
- Target-shaped lesions with mouth sores, swelling, or difficulty eating and drinking, which could indicate severe erythema multiforme
- Your baby has a target-shaped rash with fever, joint swelling, or other systemic symptoms
What You Can Do at Home
- Keep track of when you notice target or bullseye-shaped rash on baby — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that there is no version of a true target-shaped rash that should be dismissed; all should be evaluated by a healthcare provider — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Use fragrance-free, hypoallergenic products on your baby's skin. Avoid over-bathing — 2-3 baths per week is usually sufficient.
- While monitoring at home, seek immediate care if an expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications.
Related Conditions
Circular or Ring-Shaped Rash on Baby
A ring-shaped or circular rash on a baby can be caused by ringworm (a fungal infection), granuloma annulare, nummular eczema, or Lyme disease. Ringworm is the most common cause and is easily treated with antifungal cream. If the ring has a clear center with a raised, scaly border, ringworm is very likely. A ring-shaped rash following a tick bite needs prompt medical evaluation.
Baby Rash Accompanied by Fever
Rashes that occur with or after a fever are very common in babies and are most often caused by viral infections. Roseola is the classic example, where a rash appears after the fever breaks. While most causes are benign, a rash with fever should always be monitored carefully, and a non-blanching rash with fever needs immediate medical attention.
Large Insect Bite Reaction in Baby
It is common for babies and young children to have larger reactions to insect bites than adults. A large local reaction with significant swelling, redness, and firmness around a bite is usually not an allergy but rather a normal immune response to the insect's saliva. True allergic reactions involve hives, swelling away from the bite, or breathing difficulty.
Related Resources
Rash Decision Tree
Identify common rashes and determine when to seek care.
Baby Skin Conditions Guide
Visual guide to common baby skin conditions, rashes, and when to see a doctor.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is target or bullseye-shaped rash on baby normal?
When should I call the doctor about target or bullseye-shaped rash on baby?
When is target or bullseye-shaped rash on baby normal?
What causes target or bullseye-shaped rash on baby?
What should I mention to my pediatrician about target or bullseye-shaped rash on baby?
Is target or bullseye-shaped rash on baby normal at 0-3 months?
Is target or bullseye-shaped rash on baby normal at 3-6 months?
Should I go to the ER for target or bullseye-shaped rash on baby?
Does target or bullseye-shaped rash on baby go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Target or Bullseye-Shaped Rash on Baby.
Things to mention
- Describe when you first noticed target or bullseye-shaped rash on baby and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if any rash that has a distinct target or bullseye appearance should be seen by your pediatrician.
- Mention if a rash that appeared at the site of a known or suspected tick bite, even without a classic bullseye pattern.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Any rash that has a distinct target or bullseye appearance should be seen by your pediatrician
- A rash that appeared at the site of a known or suspected tick bite, even without a classic bullseye pattern
- Multiple target-shaped lesions on the hands and feet following a viral illness
Urgent signs to report immediately
- An expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications
- Target-shaped lesions with mouth sores, swelling, or difficulty eating and drinking, which could indicate severe erythema multiforme
- Your baby has a target-shaped rash with fever, joint swelling, or other systemic symptoms
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of target or bullseye-shaped rash on baby are normal. Talk to your pediatrician if an expanding bullseye rash after a tick bite, as early treatment for lyme disease prevents complications.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
Was this page helpful?
Related Skin Concerns
Circular or Ring-Shaped Rash on Baby
A ring-shaped or circular rash on a baby can be caused by ringworm (a fungal infection), granuloma annulare, nummular eczema, or Lyme disease. Ringworm is the most common cause and is easily treated with antifungal cream. If the ring has a clear center with a raised, scaly border, ringworm is very likely. A ring-shaped rash following a tick bite needs prompt medical evaluation.
Baby Rash Accompanied by Fever
Rashes that occur with or after a fever are very common in babies and are most often caused by viral infections. Roseola is the classic example, where a rash appears after the fever breaks. While most causes are benign, a rash with fever should always be monitored carefully, and a non-blanching rash with fever needs immediate medical attention.
Large Insect Bite Reaction in Baby
It is common for babies and young children to have larger reactions to insect bites than adults. A large local reaction with significant swelling, redness, and firmness around a bite is usually not an allergy but rather a normal immune response to the insect's saliva. True allergic reactions involve hives, swelling away from the bite, or breathing difficulty.
My Baby Has an Extra Nipple (Accessory Nipple)
Accessory (supernumerary) nipples are one of the most common minor congenital findings, occurring in about 1 in 18 people. They appear as small, flat, often pigmented bumps along the "milk line" — an embryonic line running from the armpit to the groin on each side. Most people mistake them for moles. Accessory nipples are almost always harmless and require no treatment. In rare cases, they may be associated with kidney abnormalities, so some pediatricians recommend a renal ultrasound if one is found, though this practice varies.
My Baby Was Born with a Raw Spot on Their Scalp (Aplasia Cutis)
Aplasia cutis congenita (ACC) is a condition where a baby is born with a small area of missing skin, most commonly on the scalp. It occurs in about 1 in 10,000 births. The affected area may look like a raw wound, an ulcer, or may have already healed into a thin, shiny scar by the time of birth. Most cases are small, isolated, and heal well with basic wound care — the area eventually forms a hairless scar. Larger defects or those associated with other findings may need more investigation, but isolated small ACC has an excellent prognosis.
New Treatments for Atopic Dermatitis (Eczema) in Children
Treatment for atopic dermatitis in children has advanced significantly in recent years. While moisturizers and topical steroids remain first-line treatments, newer options include non-steroidal topical medications (like crisaborole), biologic therapies (like dupilumab, approved for children 6 months and older), and JAK inhibitors. Most children's eczema is well-managed with basic skin care and mild topical treatments, but these newer options provide hope for moderate-to-severe cases.