Hi, I am 25 years old. Well one day I woke up and I had a silver dollar sized bald spot on the side of my head. I am scared that I might lose more of my hair. Might someone know what's going on or what I can do to try save the rest of my hair? Very possibly this is Alopecia Areata; it very often starts this way. There is not necessarily continued loss, but there can be. See a dermatologist. Quite often these conditions respond to simple injection of medication into the hairless spot. While there is neither a cure for alopecia Areata nor drugs approved for its treatment, some people find that medications approved for other purposes can help hair grow back, at least temporarily. Keep in mind that while these treatments may promote hair growth, none of them prevent new patches or actually cure the underlying disease.