Men’s obesity is mild, generally does not affect the physiology, but too much obesity may lead to short penis, sexual dysfunction, loss of libido and so on. 1. Short penis: If a man is too obese, it may make the fat in the belly thicker, resulting in the shortening of the length of the penis exposed outside the body. Even when the penis is erect, the effective length will be obviously shortened, which may make sexual life affected. 2. Sexual dysfunction: excessive obesity in men may increase the level of estrogen and decrease the level of androgen in the body, which may lead to erectile dysfunction and have an impact on sexual function. 3. Loss of libido: Obesity often means increased fat content, a relative decrease in muscle, and a decrease in androgen levels, which leads to loss of libido in men. Men who are too obese may have an impact on sexual function, but also a risk factor for diabetes, high blood cholesterol and so on. It is recommended that under the guidance of a doctor to improve lifestyle habits, weight control, healthy fat loss.