The recovery time of sperm after drinking alcohol is related to the amount of alcohol consumed. Occasional small amounts of alcohol generally have a relatively small effect on sperm, which usually returns to normal in about half a month to a month; if a large amount of alcohol is consumed regularly, the damage to sperm is greater and it takes at least three months to recover. Alcohol can lead to endocrine disorders in the body, resulting in a decline in androgens and an increase in estrogen, resulting in poor sperm quality. In addition, alcohol may induce prostatitis, which affects the quality of sperm. Also alcohol can cause congestion or edema in the reproductive system, making the inflammation worse. If you drink a lot of alcohol for a long time or have a history of intoxication, it is recommended to stop drinking for three months before considering pregnancy. During the preparation period, you need to pay attention to rest, stop smoking and drinking, and strengthen exercise to improve the quality of sperm. Also maintain regular work and rest and avoid excessive mental stress. Eat more zinc- and selenium-rich foods, such as shellfish, animal offal, cereal germ, kelp, cuttlefish, shrimp and nori, etc., as appropriate.