Semen looks like water in addition to normal liquefaction, it is important to consider whether there is oligospermia. First, we need to see whether the semen is watery just after ejaculation or liquefied like this half an hour after ejaculation, if it is after liquefaction, there is no need to worry. In addition, it is also necessary to consider whether the semen is like water because the amount of semen is insufficient due to more frequent sexual life recently or more masturbation, this situation is a normal physiological state and there is no need to worry. Other than that, if semen appears milky white and dilute water, you should consider whether you have oligospermia, and you can go to the hospital for routine semen examination. If the sperm content in the semen is less than 20 million, it is a case of oligospermia. You can do the relevant tests on the genitalia, such as the seminal vesicle gland, prostate and other organs, to clarify the cause of the disease and then treat it symptomatically.