Leviticus 13:25

then the priest shall look at it. And if the hair in the bright spot has turned white and it appears to be deeper than the skin, it is leprosy; it has broken out in the burn. Therefore, the priest shall pronounce him unclean; it is an infection of leprosy.

Leviticus 13:4

But if the bright spot is white on the skin of his body, and it does not appear to be deeper than the skin, and the hair on it has not turned white, then the priest shall isolate him who has the infection for seven days.

Leviticus 13:18-20

“When the body has a boil on its skin and it is healed,

Treasury of Scripture Knowledge

Summary

Then the priest shall look upon it: and, behold, if the hair in the bright spot be turned white, and it be in sight deeper than the skin; it is a leprosy broken out of the burning: wherefore the priest shall pronounce him unclean: it is the plague of leprosy.

Turned white

Bible References

Turned white

Leviticus 13:4
But if the bright spot is white on the skin of his body, and it does not appear to be deeper than the skin, and the hair on it has not turned white, then the priest shall isolate him who has the infection for seven days.