Raised Bumps on Baby's Skin
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, AAP, NIH guidelines
Last reviewed:
Baby skin is sensitive and changes frequently. If you are noticing raised bumps on baby's skin, here is what you need to know.
The short answer
Raised bumps on a baby's skin have many possible causes, most of which are harmless. Common causes include keratosis pilaris (tiny rough bumps on upper arms and thighs), molluscum contagiosum (small, dome-shaped, pearl-like bumps from a viral infection), insect bites, viral rashes, and milia (tiny white bumps in newborns). The bumps' appearance - their color, size, texture, location, and whether they are itchy - helps determine the cause. Most resolve on their own or with simple treatment.
Key takeaways
- Raised bumps on a baby's skin have many possible causes, most of which are harmless. Common causes include keratosis pilaris (tiny rough bumps on upper arms and thighs), molluscum contagiosum (small, dome-shaped, pearl-like bumps from a viral infection), insect bites, viral rashes, and milia (tiny white bumps in newborns). The bumps' appearance - their color, size, texture, location, and whether they are itchy - helps determine the cause. Most resolve on their own or with simple treatment.
- Usually normal when: Tiny white bumps on a newborn's face (milia)
- Call your doctor if: Bumps are accompanied by fever and your child appears unwell
“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 AAP, NIH guidelines, raised bumps on a baby's skin have many possible causes, most of which are harmless. Common causes include keratosis pilaris (tiny rough bumps on upper arms and thighs), molluscum contagiosum (small, dome-shaped, pearl-like bumps from a viral infection), insect bites, viral rashes, and milia (tiny white bumps in newborns). The bumps' appearance - their color, size, texture, location, and whether they are itchy - helps determine the cause. Most resolve on their own or with simple treatment. At 0-12 months, newborns commonly develop milia (tiny white bumps on the face), baby acne (red bumps and pustules on cheeks and forehead at 2-4 weeks), and erythema toxicum (blotchy red patches with small yellow bumps in the first few days). These are all harmless and resolve without treatment. Miliaria (heat rash) causes tiny red bumps from blocked sweat ducts. If bumps are widespread with fever, consult your pediatrician to evaluate for a viral illness or infection. It is generally considered normal when tiny white bumps on a newborn's face (milia). However, you should contact your pediatrician promptly if bumps are accompanied by fever and your child appears unwell.
Normal vs. Concerning
By Age
What to expect by age
0-12 months
Newborns commonly develop milia (tiny white bumps on the face), baby acne (red bumps and pustules on cheeks and forehead at 2-4 weeks), and erythema toxicum (blotchy red patches with small yellow bumps in the first few days). These are all harmless and resolve without treatment. Miliaria (heat rash) causes tiny red bumps from blocked sweat ducts. If bumps are widespread with fever, consult your pediatrician to evaluate for a viral illness or infection.
1-3 years
Common causes of raised bumps in toddlers include keratosis pilaris (rough, sandpaper-like bumps on upper arms, thighs, and cheeks - harmless and very common), molluscum contagiosum (smooth, dome-shaped, flesh-colored bumps with a central dimple - a common viral infection that spreads in daycare), insect bites (grouped red itchy bumps), and warts (rough, raised bumps from HPV). Most of these are harmless and resolve over time, though molluscum may take 6-18 months to clear.
What to Tell Your Pediatrician
- Describe when you first noticed raised bumps on baby's skin and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if bumps are spreading or multiplying.
- Mention if bumps are itchy and bothersome to your child.
- 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
- Tiny white bumps on a newborn's face (milia)
- Rough, sandpaper-like bumps on the upper arms and thighs (keratosis pilaris)
- Small red bumps during hot weather (heat rash)
- A few smooth, dome-shaped bumps that have been present for weeks (molluscum)
- Bumps are spreading or multiplying
- Bumps are itchy and bothersome to your child
- You want a diagnosis to know what the bumps are
- Bumps are on the face and you are concerned about scarring
- Bumps are accompanied by fever and your child appears unwell
- Bumps are rapidly spreading with pain and redness (possible infection)
- A bump is growing rapidly, changing shape, or has an irregular appearance
- Raised purple or dark red bumps that do not blanch (turn white) when pressed (petechiae/purpura - seek immediate care)
What You Can Do at Home
- Keep track of when you notice raised bumps on baby's skin — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that tiny white bumps on a newborn's face (milia) — this is generally within the range of normal.
- At 0-12 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 bumps are accompanied by fever and your child appears unwell.
Related Conditions
Baby Rash That Won't Go Away
A rash that persists for more than 2 weeks or keeps recurring likely needs evaluation beyond "wait and see." The most common causes of persistent rashes in babies include eczema (dry, itchy, patches), fungal infections (especially in skin folds), contact dermatitis (reaction to a product), and less commonly, psoriasis or autoimmune conditions. Proper identification is important because the treatment differs significantly - using the wrong cream (like steroid cream on a fungal infection) can actually make things worse.
Baby Heat Rash (Prickly Heat / Miliaria)
Heat rash happens when sweat gets trapped under your baby's skin, causing tiny red bumps or blisters, usually in skin folds or areas covered by clothing. It is harmless and clears up quickly once your baby is cooled down. Dressing your baby in one layer more than you would wear is a good rule of thumb to prevent overheating.
My Baby Has Insect Bites
Insect bites on babies are very common and usually result in small red bumps that may be itchy or slightly swollen. Because babies have sensitive skin and immature immune systems, their reactions to bug bites can look more dramatic than an adult's. Most bites heal on their own within a few days with simple home care.
warts baby
Related Resources
Frequently asked questions
Is raised bumps on baby's skin normal?
When should I call the doctor about raised bumps on baby's skin?
When is raised bumps on baby's skin normal?
What causes raised bumps on baby's skin?
What should I mention to my pediatrician about raised bumps on baby's skin?
Is raised bumps on baby's skin normal at 0-12 months?
Is raised bumps on baby's skin normal at 1-3 years?
Should I go to the ER for raised bumps on baby's skin?
Does raised bumps on baby's skin go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Raised Bumps on Baby's Skin.
Things to mention
- Describe when you first noticed raised bumps on baby's skin and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if bumps are spreading or multiplying.
- Mention if bumps are itchy and bothersome to your child.
- 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
- Bumps are spreading or multiplying
- Bumps are itchy and bothersome to your child
- You want a diagnosis to know what the bumps are
Urgent signs to report immediately
- Bumps are accompanied by fever and your child appears unwell
- Bumps are rapidly spreading with pain and redness (possible infection)
- A bump is growing rapidly, changing shape, or has an irregular appearance
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
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Bottom line
Most cases of raised bumps on baby's skin are normal. Talk to your pediatrician if bumps are accompanied by fever and your child appears unwell.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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Related Skin Concerns
Baby Rash That Won't Go Away
A rash that persists for more than 2 weeks or keeps recurring likely needs evaluation beyond "wait and see." The most common causes of persistent rashes in babies include eczema (dry, itchy, patches), fungal infections (especially in skin folds), contact dermatitis (reaction to a product), and less commonly, psoriasis or autoimmune conditions. Proper identification is important because the treatment differs significantly - using the wrong cream (like steroid cream on a fungal infection) can actually make things worse.
Baby Heat Rash (Prickly Heat / Miliaria)
Heat rash happens when sweat gets trapped under your baby's skin, causing tiny red bumps or blisters, usually in skin folds or areas covered by clothing. It is harmless and clears up quickly once your baby is cooled down. Dressing your baby in one layer more than you would wear is a good rule of thumb to prevent overheating.
My Baby Has Insect Bites
Insect bites on babies are very common and usually result in small red bumps that may be itchy or slightly swollen. Because babies have sensitive skin and immature immune systems, their reactions to bug bites can look more dramatic than an adult's. Most bites heal on their own within a few days with simple home care.
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.