Leviticus 13:25

the priest will examine it. If the hair on the affected area has turned white and the affected area looks deeper than the rest of the skin, an infectious skin disease has developed in the burn. The priest will pronounce you unclean. It is an infectious skin disease.

Leviticus 13:4

If the sore is white and does not appear to be deeper than the skin around it and the hairs have not turned white, the priest will isolate you for seven days.

Leviticus 13:18-20

If you have a boil that has 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
If the sore is white and does not appear to be deeper than the skin around it and the hairs have not turned white, the priest will isolate you for seven days.