Leviticus 13:39

then the priest shall examine him; and behold, if the itch has spread in the skin, the priest shall not look for the yellow hair; he is unclean.

But if in his eyes the itch is arrested and black hair has grown in it, then the itch is healed. He is clean. The priest shall pronounce him clean.

“When a man or a woman has bright spots in the skin of the body, even white bright spots,

“If a man’s hair has fallen from his head, he is bald. He is clean.

If his hair has fallen off from the front part of his head, his forehead is bald. He is clean.

But if a reddish-white plague is in the bald head or the bald forehead, it is leprosy breaking out in his bald head or his bald forehead.