Generally speaking, it is not recommended to drink cold water after sex. Drinking cold water after sex actually has no effect on sexual function, but it is not beneficial to the stomach and intestines. Sex is a strenuous exercise, 30 minutes to 1 hour afterwards, the gastrointestinal tract blood vessels are still in a state of expansion, before the return to normal drinking cold water, will make the gastrointestinal mucosa stimulated by contraction, causing gastrointestinal discomfort and even colic. It is recommended that after sex, drink some warm water or warm water, and rinse the vulva with warm water to ensure adequate rest. To be about 1 hour after the incident, the body systems blood circulation back to normal, and then drink cold water is more appropriate.