Child hair follicle: on march 31st a 12 month old tested at .27, .17 on april 28th, and .13 on june 30th. i don't get the sudden drop as their hair grows much slower. there was no ingesting or direct exposure to smoke. shouldn't results be steady?

Child hair thinning: There are a variety of underlying conditions that can cause thinning of the hair and hair loss in a 12 month old. All of them must be checked for by a Dr. They include: Nutritional deficiencies (esp Vit H, B and zinc), over consumption of vitamin A, Endocrine problems (hypothyroidism, adrenal insufficiency, diabetes) and occasionally, a fungal infection.