The following bright spots are clean:Those that one had before the Torah was given, Those that a non-Jew had when he converted; Or a child when it was born, Or those that were in a crease and were subsequently uncovered. If they were on the head or the beard, on a boil, a burn or a blister that is festering, and subsequently the head or the beard became bald, and the boil, burn or blister turned into a scar, they are clean. If they were on the head or the beard before they grew hair, and they then grew hair and subsequently became bald, or if they were on the body before the boil, burn or blister before they were festering and then these formed a scar or were healed: Rabbi Eliezer ben Jacob said that they are unclean since at the beginning and at the end they were unclean, But the sages say: they are clean.

If their color changed, whether to be lenient or stringent: How is it "to be lenient"? If it was white like snow and it became white like the lime of the Temple, or like wool or like the skin of an egg, or [as white] as the second shade of a rising or the second shade of bright white. How is it "to be stringent"? If it was the color of the skin of an egg and it became like white wool, the lime of the Temple or like snow. Rabbi Eliezer ben Azariah rules that they are clean. Rabbi Eliezer Hisma says: if the change was to be lenient it is clean, but if it was one to be stringent it must be inspected as if it were a new one. Rabbi Akiva says: whether the change was to be lenient or to be strict it must be inspected as if it were a new one.

A bright spot in which there were no signs of uncleanness: At the beginning, or at the end of the first week, he is isolated; At the end of the second week or after it had been pronounced clean, he is pronounced clean. If while the priest was about to isolate him or to pronounce him clean, signs of uncleanness appeared in it, he certifies him as unclean. A bright spot in which there are signs of uncleanness, he certifies him as unclean. If while the priest was about to certify it as unclean the signs of uncleanness disappeared: If at the beginning, or at the end of the first week, he isolates him; But if at the end of the second week or after the spot had been pronounced clean, he is pronounced clean.

One who plucks out signs of uncleanness or burns quick flesh transgresses a negative commandment. And as regards cleanness: If they were plucked out before he came to the priest, he is clean; But if after he had been certified as unclean, he remains unclean. Rabbi Akiva said: I asked Rabban Gamaliel and Rabbi Joshua while they were on the way to Narbata, "What is the ruling if the plucking occurred while he was isolated?" They said to me, "We did not hear anything [about this case], but we have heard that if they were plucked before he came to the priest he is clean, and if after he had been certified as unclean he remains unclean." I began to bring them proofs: whether the man stands before the priest or whether he is isolated, he is clean unless the priest had pronounced him unclean. When does he attain cleanness [after he has been certified unclean]? Rabbi Eliezer says: after another nega arises in him and he has attained cleanness after it. But the sages says: only after another nega has spread over his whole body or after his bright spot has been reduced to less than the size of a split bean.

If one had a bright spot and it was cut off, he becomes clean; If he cut it off intentionally: Rabbi Eliezer says: [he is clean] only after another nega arises in him and he has attained cleanness after it. But the sages say: only after it has spread over all his body. If it was on the tip of one's foreskin, he should be circumcised.