Sexually transmitted infection
If a sexually transmitted infection (STI) is left untreated, may lead to hair loss. Syphilis is just like STI. If syphilis is also left un-curable may cause patchy loss of hair on the eyebrows, scalp, and beard, and anywhere on the body. Other STIs may cause hair loss as well.
- Can hair grow again?
After curing the STI, hair sometimes starts to regrow frequently.