TLDR Some children are born with unusually short, fine hair because their hair growth phase is short, but this often gets better by itself during puberty.
The document reported on two cases of congenital hypotrichosis, where children had persistently short, fine hair from birth due to a short anagen phase, rather than slow hair growth. The condition was found to potentially have an autosomal dominant inheritance pattern and resolved spontaneously during puberty. Scanning electron microscopy showed a cuticular pattern typical of thin hair. The maximal hair lengths and estimated anagen durations were 6 cm and 176 days for patient 1, and 12 cm and 400 days for patient 2. The study confirmed the existence of short anagen cycles as a cause for short hair, a condition that may be treatable with minoxidil, which can prolong the anagen phase. These cases were the first documented instances of congenital hypotrichosis due to short anagen without associated abnormalities.
214 citations
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March 1993 in “Archives of Dermatology” Telogen effluvium is a reversible hair loss condition that requires a detailed diagnosis and often resolves on its own.
72 citations
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December 1983 in “Journal of Investigative Dermatology” Minoxidil helps hair cells live longer and grow longer.
Low-level light therapy, possibly combined with other treatments, may become a leading hair loss treatment, while hirsutism often worsens with age and lacks preventive options.
Baldness is often hereditary and linked to male hormones, becoming noticeable when half the hair is lost.
Some treatments like minoxidil, finasteride, and surgery can help with hereditary hair loss.
17 citations
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June 2014 in “Journal of Ultrasound in Medicine” Abnormal cuticle and hair shaft medulla cause hair loss in androgenetic alopecia; sonography helps diagnose and manage it.
42 citations
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September 2000 in “British Journal of Dermatology” Some children are born with unusually short, fine hair because their hair growth phase is short, but this often gets better by itself during puberty.
189 citations
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May 1991 in “Medical Entomology and Zoology” 11 citations
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February 1982 in “RePub (Erasmus University, Rotterdam)” Studying hair roots can help diagnose hair diseases and guide treatments.
