Why are sperm as thin as water?

Semen is as thin as water, usually semen has problems, that is, the sperm content in semen should be very low. Our normal semen is milky gel, if like water, then it is very few sperm in semen. Our normal male is generally not less than 20 million per ml, if less than 20 million is oligospermia; if like water, then it is likely to be azoospermia or extremely oligospermia; If it is less than 5 million, it is called severe oligozoospermia; if only a few sperm can be found or a few sperm can be seen after centrifugation under high power vision, it is severe oligozoospermia. This situation is generally caused by many causes. It is recommended to conduct standardized examination and treatment with hospitals. It cannot be generalized.