It's likely due to normal newborn hair loss, which is very common and usually not a cause for concern.
Here's a more detailed explanation:
Newborn Hair Loss: A Normal Phenomenon
Many babies lose some or all of their hair in the first few months of life. This is a completely normal process and is often referred to as telogen effluvium. The hair your baby was born with is shed to make way for new, permanent hair growth.
Reasons Behind Your Baby's Hair Loss
- Hormonal Changes: During pregnancy, babies are exposed to high levels of hormones. After birth, these hormone levels drop, which can cause hair follicles to enter a resting phase (telogen). After a period, the hair falls out.
- Friction: Babies spend a lot of time on their backs, which can cause friction on the back of their head. This friction can lead to hair loss in that area, making it appear as if they have "half a head of hair."
- Hair Growth Cycle: Baby hair goes through a growth cycle, and it's normal for hair to shed as it enters the resting phase before new hair grows.
- Underlying Medical Conditions (Rare): In rare cases, hair loss can be a sign of an underlying medical condition like a thyroid problem or fungal infection. However, this is much less likely, especially if your baby is otherwise healthy and thriving.
What to Expect and What to Do
- Expect Hair to Grow Back: Typically, your baby's hair will start to grow back within a few months. The new hair might have a different texture or color than the hair they were born with.
- No Treatment Necessary: In most cases, no treatment is necessary for newborn hair loss.
- Gentle Care: Continue to wash your baby's hair gently with a mild baby shampoo.
- Consult Your Pediatrician: If you are concerned about your baby's hair loss, or if they have other symptoms, such as a rash or skin irritation on their scalp, consult your pediatrician.
When to See a Doctor
Consult your pediatrician if you notice any of the following:
- Hair loss accompanied by a rash, redness, or scaling on the scalp.
- Uneven or patchy hair loss.
- Other symptoms such as fever, irritability, or poor feeding.
- You are simply worried about the hair loss. It’s always better to get peace of mind!
In the vast majority of cases, your baby's "half a head of hair" is simply a normal part of their development, and you can expect their hair to grow back in time.
