Is it normal for a hair under an inch long to be noticably thinner towards the root? i see hairs that fall out that look kinda like an exclamation mark, thick at top and thin at the root. my hair is around 2cm long.
The exclamation point hair you’re describing usually points to a variety of conditions, such as allergic disorders, thyroid disease, vitiligo, lupus, rheumatoid arthritis, and ulcerative colitis (see Exclamation point hair). Normally hair is uniform in width.