Leviticus 13:42-46

But if on the bald head or the bald forehead there occurs a reddish-white infection, it is leprosy breaking out on his bald head or on his bald forehead.

Then the priest shall look at him; and if the swelling of the infection is reddish-white on his bald head or on his bald forehead, like the appearance of leprosy in the skin of the body,

he is a leprous man, he is unclean. The priest must pronounce him unclean; his infection is on his head.

“As for the person who has the leprous infection, his clothes shall be torn and the hair of his head shall be uncovered, and he shall cover his mustache and call out, ‘Unclean! Unclean!’

He shall remain unclean all the days during which he has the infection; he is unclean. He shall live alone; he shall live outside the camp.