 Suspicions have been raised that talc use contributes to certain types of disease, mainly cancers of the ovaries and lungs.Talc containing asbestos is classified as a group 1 agent (carcinogenic to humans), talc use in the perineal classified as group 2B (possibly carcinogenic to humans) and talc not containing asbestos is classified as group 3 (unclassifiable as to carcinogenicity in humans)(all in the IARC listing).Reviews by Cancer Research UK and the American Cancer Society conclude that some studies have found a link, but other studies have not.