Vaginal bleeding after sex is common. Although this bleeding after sex is often called "vaginal" bleeding, other parts of the genitals and reproductive system can be involved.
See a health care professional if you have bleeding that worries you. Get a health care checkup right away if you have ongoing vaginal bleeding after sex. Be sure to make an appointment if you're at risk of a sexually transmitted infection or you think you've been in contact with someone who has this type of infection.
After you go through menopause, it's important to get a checkup if you have vaginal bleeding at any time. Your health care team needs to make sure that the cause of your bleeding isn't something serious.
Vaginal bleeding may go away by itself in younger women. If it doesn't, it's important to get a health care checkup.
Show References
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Original article: https://www.mayoclinic.org/symptoms/bleeding-after-vaginal-sex/basics/causes/sym-20050716