 Koro may also be derived from Malay term "Kura" which means "head of turtle" or "keruk" which means "to shrink".The term "shuk yang" (缩阳), adapted from Chinese, means "the shrinkage of penis".The term "koro" is also known as "rok loo" (genital shrinkage disease) in Thailand, "jinjinnia bemar" in Assam, India, and "lanuk e laso" by Bogoba tribe in Philippines.