Baby Hair Not Growing - Bald Baby Concerns
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, NIH, AAP guidelines
Last reviewed:
Your baby's physical development is unique, and concerns about baby hair not growing - bald baby concerns, here is what you need to know.
The short answer
Hair growth in babies varies enormously and is primarily genetic. Some babies are born with thick hair and some are nearly bald until age 2-3. Both are completely normal. Many babies lose their newborn hair in the first few months (telogen effluvium) and grow new hair that may be a different color or texture. A bald spot on the back of the head from friction (sleeping position) is very common and resolves once the baby is more mobile. Most "bald babies" grow a full head of hair by age 2-3.
Key takeaways
- Hair growth in babies varies enormously and is primarily genetic. Some babies are born with thick hair and some are nearly bald until age 2-3. Both are completely normal. Many babies lose their newborn hair in the first few months (telogen effluvium) and grow new hair that may be a different color or texture. A bald spot on the back of the head from friction (sleeping position) is very common and resolves once the baby is more mobile. Most "bald babies" grow a full head of hair by age 2-3.
- Usually normal when: Your baby lost their newborn hair and new hair is slowly growing in
- Call your doctor if: Sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes
- Varies by age — see the age-by-age breakdown below
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What Parents Should Know
According to AAP, NIH guidelines, hair growth in babies varies enormously and is primarily genetic. Some babies are born with thick hair and some are nearly bald until age 2-3. Both are completely normal. Many babies lose their newborn hair in the first few months (telogen effluvium) and grow new hair that may be a different color or texture. A bald spot on the back of the head from friction (sleeping position) is very common and resolves once the baby is more mobile. Most "bald babies" grow a full head of hair by age 2-3. At 0-3 months, newborn hair loss is extremely common. The hair your baby was born with often falls out between 1-4 months as the growth cycle resets. Some babies shed dramatically and look nearly bald, while others lose hair gradually. This is called telogen effluvium and is caused by the hormonal shift after birth. The new hair that grows in may be a completely different color and texture from the birth hair. Do not use any products to try to speed hair growth - time is the only solution. It is generally considered normal when your baby lost their newborn hair and new hair is slowly growing in. However, you should contact your pediatrician promptly if sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Newborn hair loss is extremely common. The hair your baby was born with often falls out between 1-4 months as the growth cycle resets. Some babies shed dramatically and look nearly bald, while others lose hair gradually. This is called telogen effluvium and is caused by the hormonal shift after birth. The new hair that grows in may be a completely different color and texture from the birth hair. Do not use any products to try to speed hair growth - time is the only solution.
3-6 months
A bald spot on the back of the head is very common at this age from friction against the crib mattress. This is not a sign of nutritional deficiency - it is a mechanical result of spending time on their back (which is the correct safe sleep position). As your baby starts rolling and spending more time sitting and on their tummy, the bald spot fills in. New hair growth should be starting to appear, though it may be very fine and light.
6-12 months
Hair growth varies tremendously at this age. Some babies have thick hair by 6 months and others are still mostly bald. Both are normal. Hair texture and color may continue to change. If your baby has distinct patches of complete hair loss (as opposed to overall thin/sparse hair), this could indicate alopecia areata (an autoimmune condition) or ringworm (a fungal infection) and should be evaluated. Overall thin or slow-growing hair is almost always just genetics.
12-36 months
Most babies have visible hair by their first birthday, but some take until age 2-3 to develop a full head of hair. This is particularly common in babies with very fair, fine hair. If your toddler has no hair growth at all by age 2, or if they develop sudden bald patches, discuss with your pediatrician. Nutritional deficiencies (iron, zinc, biotin) can affect hair growth but are usually accompanied by other symptoms. Compulsive hair pulling (trichotillomania) can emerge in toddlerhood and causes patchy loss.
What to Tell Your Pediatrician
- Describe when you first noticed baby hair not growing - bald baby concerns and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby has distinct circular bald patches (not from friction) that could indicate alopecia or ringworm.
- Mention if your toddler's hair seems to be thinning or falling out rather than growing in.
- 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
- Your baby lost their newborn hair and new hair is slowly growing in
- Your baby has a bald spot from sleeping on their back - this is normal and resolves with increased mobility
- Hair growth is slow but steady, with new fine hair visible
- Family members also had sparse hair as babies that filled in by age 2-3
- Your baby has distinct circular bald patches (not from friction) that could indicate alopecia or ringworm
- Your toddler's hair seems to be thinning or falling out rather than growing in
- Your baby has no hair growth at all by age 2
- You notice your toddler pulling out their own hair
- Sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes
- Bald patches with redness, scaling, or broken hairs (possible fungal infection)
- Hair loss accompanied by overall poor growth, pallor, or your child seeming unwell
What You Can Do at Home
- Keep track of when you notice baby hair not growing - bald baby concerns — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby lost their newborn hair and new hair is slowly growing in — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Provide plenty of supervised floor time and tummy time to support your baby's physical development.
- While monitoring at home, seek immediate care if sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes.
Related Conditions
Baby Dry Scalp and Flaking - Cradle Cap
Dry, flaky skin on your baby's scalp is most likely cradle cap (infantile seborrheic dermatitis), which affects up to 70% of babies in the first 3 months. Cradle cap appears as yellow, oily, scaly patches or thick crusty buildup on the scalp. Despite its appearance, it is not painful, itchy, or contagious, and it almost always resolves on its own by 6-12 months. Treatment involves loosening the scales with oil, gentle brushing, and regular shampooing. It is not caused by poor hygiene.
Red Ring-Shaped Rash on Baby - Ringworm and Other Causes
A ring-shaped (annular) rash on a baby can be ringworm (a fungal infection, not actually a worm), granuloma annulare, nummular eczema, or erythema migrans (from a tick bite). Ringworm is the most common cause - it appears as a red, scaly ring with clearing in the center that slowly expands. It is contagious but treatable with over-the-counter antifungal cream. If the rash is a bull's-eye pattern (red ring with central clearing) after a potential tick exposure, seek evaluation for Lyme disease.
Signs of Nutritional Deficiency in Toddlers
The most common nutritional deficiencies in toddlers are iron, vitamin D, zinc, and calcium - especially in picky eaters and children who drink excessive amounts of milk. Signs of iron deficiency (the most common) include pallor, fatigue, irritability, poor appetite, and slow weight gain. Most picky toddlers get adequate nutrition despite their limited diets, but if your child eats fewer than 10-15 foods total or avoids entire food groups, a nutritional evaluation may be helpful.
Related Resources
Growth Percentile Calculator
Plot your baby's weight, length, and head circumference on WHO/CDC growth charts.
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 baby hair not growing - bald baby concerns normal?
When should I call the doctor about baby hair not growing - bald baby concerns?
When is baby hair not growing - bald baby concerns normal?
What causes baby hair not growing - bald baby concerns?
What should I mention to my pediatrician about baby hair not growing - bald baby concerns?
Is baby hair not growing - bald baby concerns normal at 0-3 months?
Is baby hair not growing - bald baby concerns normal at 3-6 months?
Should I go to the ER for baby hair not growing - bald baby concerns?
Does baby hair not growing - bald baby concerns go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Baby Hair Not Growing - Bald Baby Concerns.
Things to mention
- Describe when you first noticed baby hair not growing - bald baby concerns and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby has distinct circular bald patches (not from friction) that could indicate alopecia or ringworm.
- Mention if your toddler's hair seems to be thinning or falling out rather than growing in.
- 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
- Your baby has distinct circular bald patches (not from friction) that could indicate alopecia or ringworm
- Your toddler's hair seems to be thinning or falling out rather than growing in
- Your baby has no hair growth at all by age 2
Urgent signs to report immediately
- Sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes
- Bald patches with redness, scaling, or broken hairs (possible fungal infection)
- Hair loss accompanied by overall poor growth, pallor, or your child seeming unwell
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 baby hair not growing - bald baby concerns are normal. Talk to your pediatrician if sudden hair loss alongside other symptoms like weight changes, fatigue, or skin changes.
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 Physical Concerns
Baby Dry Scalp and Flaking - Cradle Cap
Dry, flaky skin on your baby's scalp is most likely cradle cap (infantile seborrheic dermatitis), which affects up to 70% of babies in the first 3 months. Cradle cap appears as yellow, oily, scaly patches or thick crusty buildup on the scalp. Despite its appearance, it is not painful, itchy, or contagious, and it almost always resolves on its own by 6-12 months. Treatment involves loosening the scales with oil, gentle brushing, and regular shampooing. It is not caused by poor hygiene.
Red Ring-Shaped Rash on Baby - Ringworm and Other Causes
A ring-shaped (annular) rash on a baby can be ringworm (a fungal infection, not actually a worm), granuloma annulare, nummular eczema, or erythema migrans (from a tick bite). Ringworm is the most common cause - it appears as a red, scaly ring with clearing in the center that slowly expands. It is contagious but treatable with over-the-counter antifungal cream. If the rash is a bull's-eye pattern (red ring with central clearing) after a potential tick exposure, seek evaluation for Lyme disease.
Signs of Nutritional Deficiency in Toddlers
The most common nutritional deficiencies in toddlers are iron, vitamin D, zinc, and calcium - especially in picky eaters and children who drink excessive amounts of milk. Signs of iron deficiency (the most common) include pallor, fatigue, irritability, poor appetite, and slow weight gain. Most picky toddlers get adequate nutrition despite their limited diets, but if your child eats fewer than 10-15 foods total or avoids entire food groups, a nutritional evaluation may be helpful.
Should I Use Adjusted Age for My Preemie's Milestones?
Yes — for premature babies, developmental milestones should be assessed using adjusted (corrected) age, not chronological age, until at least 2 years of age. Adjusted age is calculated by subtracting the number of weeks your baby was born early from their actual age. For example, a 6-month-old born 2 months early would have an adjusted age of 4 months, and should be assessed against 4-month milestones. Most pediatricians use adjusted age for developmental assessment through age 2-3, and for growth charts through age 2.
Baby-Proofing a Small Apartment
Baby-proofing a small apartment is absolutely possible and focuses on the same key safety principles as any home: securing furniture to walls, covering outlets, locking cabinets with hazardous materials, and ensuring safe sleep spaces. Small spaces actually have an advantage - there is less area to monitor. Focus on eliminating the most dangerous hazards first: falls, poisoning, choking, and burns.
My Baby Seems to Use One Side More Than the Other
Babies should use both sides of their body fairly equally during the first 18 months of life. While slight preferences can be normal, a consistent pattern of favoring one side - using one arm much more than the other, crawling with one leg dragging, or turning the head predominantly one way - should always be discussed with your pediatrician. Early identification of asymmetry leads to the best outcomes.