vagina got bigger after sex

It is quite impossible that a woman’s vagina becomes permanently stretched out from having sex. After each sexual encounter, the vagina contracts to its original size, and it has no lasting stretching from a large penis. The only way that a woman’s vagina may stretch significantly is after she has a baby. Your vagina might be swollen. Your vagina can swell when you’re not really aroused but you still have sex. You could use some lubricant. But still there are some other possible causes, such as: Trauma, Infection, Irritation from ointments and soaps, Allergy to semen, Rough or prolonged sexual intercourse, Gonorrhoea, Streptococcus infection, Staphylococcus infection, E. coli infection, Trichomonas infection, Monilia infection, Cysts of Gartne's duct, Endometriosis, Carcinoma. So you should get it checked by your gynecologist. Better safe than sorry!