There arealso acquired risk factors: prenatal risk factors high estrogen levels, child nutrition, western lifestyles little exercise, caloric diets, occupation welders, painters, carpenters, etc.
Los seminomatosos se caracterizan por la presencia de seminoma, únicamente; mientras, los no seminomatosos presentan carcinoma embrionario, tumor de saco vitelino, coriocarcinoma y/o teratoma maduro e inmaduro.