Hello, Thank you for writing to us, Bleeding after sex might be there so nothing to more worry about it. But as i had gone through your query i found you point out there that it was heavy bleeding. We had to worry if its not stopping than you should have to worry because there is possibility of internal part damage while having intercourse. other possibility for Bleeding may occur if amount of pre cum from vagina is less and due to that penis cant enter in vagina easily and due to that it might possible that you had bleeding issue. You may use lubricant if it happens each time you had sex so that penis could enter easily. Or you should use different positions in which penis enters easily. But i would suggest to go for foreplay and Oral sex first before you go for intercourse because it will help for pre cum and also you and your partner will have more pleasure than normal intercourse. Still you are facing continue bleeding than for the same issue i would like to suggest to concern a good doctor and check for issue they will suggest you better. Hope you will find it helpful. Thanks & Regards, Dr. Gaurav Prajapati