Why is my 4 year old's hair so thin?
Approved answer
Reasons for Thin Hair in Children
There are several common reasons for thin hair in kids, including fungal or bacterial infections, telogen effluvium (which can occur due to stress), and traction alopecia. The most prevalent cause of hair loss in little ones is scalp ringworm, a treatable fungal infection. Fortunately, most hair loss issues can be managed by doctors, and many cases can even be reversed.