For male infertility patients, semen examination is an essential item. However, semen examination is conditional and not done when you come, you need to abstain from sex for 3~7 days, which means 3~7 days without ejaculation (including intercourse, masturbation, seminal emission, etc.), it is better to examine 4~5 days after ejaculation, try to avoid taking semen examination under the condition of cold and fever, drunkenness, exertion, staying up late, soaking in hot springs or sauna, etc. Note that you cannot use condoms and use a special semen extraction cup to collect all the ejaculated at one time semen. Our semen examination hours are all day Monday to Friday and Saturday and Sunday morning (8:00~11:00 am and 14:30~16:30 pm).