When a man has on the skin of his body a swelling, a scab, or spot, and it turns on the skin of his body like a mark of a leprous sore, then he shall be brought to Aaron the priest or to one of his sons the priests.
And the priest shall examine him on the seventh day, and if it has spread around the skin, then the priest shall pronounce him unclean. It is a leprous sore.
And the priest shall examine him again on the seventh day, and if the mark has faded and not spread into the skin, then the priest shall pronounce him clean; it is only a scab, and he shall wash his clothes and be clean.