The kohen is to examine it, and behold, if its appearance is lower than the skin and its hair has turned white, then the kohen is to pronounce him unclean. It is a plague of tza'arat that has broken out within the boil.
Then the kohen is to examine him, and behold, if the rising of the plague is reddish-white on his bald head or bald forehead, like the appearance of tza'arat in the skin of the flesh,
He is to examine the mark, and behold, if the mark is in the walls of the house with hollow streaks, greenish or reddish, and appears deeper than the wall,