The Torah commands a woman to bring a korban after the birth of a child. A son is to be circumcised on the eighth day of his life. The Torah introduces the phenomenon of tzara'at (often mistranslated as leprosy) — a miraculous affliction that attacks people, clothing and buildings to awaken a person to spiritual failures. A kohen must be consulted to determine whether a particular mark is tzara'at or not. The kohen isolates the sufferer for a week. If the malady remains unchanged, confinement continues for a second week, after which the kohen decides the person's status. The Torah describes the different forms of tzara'at. One whose tzara'at is confirmed wears torn clothing, does not cut his hair, and must alert others that he is ritually impure. He may not have normal contact with people. The phenomenon of tzara'at on clothing is described in detail.