You can usually have intercourse during vaginal ultrasound follicle monitoring, but you need to pay attention to hygiene and cleanliness before and after intercourse. Vaginal ultrasound monitoring of follicles is mainly to observe the situation of women’s eggs, because the survival time of the egg is shorter, in the ovulation period, the chances of pregnancy will be higher, if the monitoring of follicles, there is a period of time from the follicle development and maturity, then coitus is not a great impact on the conception, so you can coitus. It takes about two days for a man to store sperm, so if you have sex too often, it may cause the quality of sperm to drop, which will also affect the chances of conception, so it is not recommended to have sex too often when the follicle is approaching maturity. If after intercourse, some uncomfortable symptoms appear in the body, such as abdominal pain, bleeding, etc., you need to go to the hospital as soon as possible for relevant examinations.