There are also estrogens in men. Most of the estrogen in the male body is derived from androgen as a source, and is transformed from peripheral tissues such as skin, fat, and nerves. The estrogen in the male body can balance a part of the androgen, which can make the skin delicate and the male characteristics are reduced. However, too high estrogen will have a significant impact on the male reproductive system, including affecting the level of androgen, causing changes in testicular tissue structure, causing testicular cancer, reducing the number of sperm in the semen, causing male breast development, leading to endocrine disorders.