Toenails grow from the matrix. The nails are composed largely ofkeratin, a hardened protein (that is also in skin and hair). As new cells grow in the matrix, the older cells are pushed out, compacted and take on the familiar flattened, hardened form of the toenail. Are nails alive? Mos...
Although Terry's nails may suggest a serious condition, it can also appear in seniors as a normal part of aging. And some people have all-white fingernails or white toenails like this throughout their lives, which suggests a harmless genetic trait. To rule out more serious causes, ask your...