Leviticus 14:37
And he shall look on the plague. And behold, if the plague is in the walls of the house with hollow streaks, greenish or reddish, which in sight are lower than the wall,
Leviticus 13:3
And the priest shall look on the plague in the skin of the flesh. And if the hair in the plague has turned white, and the plague in sight is deeper than the skin of his flesh, it is a plague of leprosy. And the priest shall look on him and shall pronounce him unclean.
Leviticus 13:19-20
and in the place of the boil there is a white rising or a bright spot, a reddish white, it shall be seen by the priest;
Leviticus 13:42
And if there is in the bald head, or bald forehead, a white reddish sore, it is a leprosy sprung up in his bald head or his bald forehead.
Leviticus 13:49
and if the plague is greenish or reddish in the garment, or in the skin, either in the warp or in the woof, or in anything of skin, it is a plague of leprosy. And it shall be seen by the priest.