Hepatitis B if the condition is mild or no serious complications, generally does not affect the sexual function, but there are serious complications or more serious condition can affect the sexual function. 1. Does not affect the sexual function: if the patient is a carrier of hepatitis B and does not have severe hepatitis, and there are no serious complications, at this time does not affect the sexual function, because it will not affect the liver function, and it will not affect the androgen. 2. Impact on sexual function: Hepatitis B patients with severe hepatitis or complications such as cirrhosis, liver cancer and other serious complications can be directly caused by liver function decline, liver function decline can be caused by androgen reduction, which can occur impotence, premature ejaculation and other sexual dysfunction. Hepatitis B patients who have sexual dysfunction need to go to the hospital for treatment, they can not just use drugs.