Macrogenitalism is a fetish for very large genitals. People with this fetish become aroused by individuals who have significantly larger genitals than the norm. They typically seek out partners with large genitals to satisfy their fetish.
People of any gender or sexual identity can have macrogenitalism. They may be attracted to males or females with very large genitals. For people attracted to large male penises, the condition is a form of phallophilia, a fetish for unusually sized penises.