Leviticus 13:40-44

“A man who has lost his hair and is bald is clean. If he has lost his hair from the front of his scalp and has a bald forehead, he is clean. But if he has a reddish-white sore on his bald head or forehead, it is a defiling disease breaking out on his head or forehead. The priest is to examine him, and if the swollen sore on his head or forehead is reddish-white like a defiling skin disease, the man is diseased and is unclean. The priest shall pronounce him unclean because of the sore on his head.