| Most women experience discomfort and bleeding the first time they have sexual intercourse due to the stretching or tearing of their hymen. |
| In a variety of mammals, females must adopt a receptive posture for sexual intercourse to occur. |
| At the moment, incest covers not simply sexual intercourse but any form of sexual connection. |
| It may be acquired from transfusion with infected blood and the use of unsterilised needles and syringes and by unprotected sexual intercourse. |
| Recent work has shown that most children undergoing vaginoplasty will require another operation to permit use of tampons and sexual intercourse. |
| Women may also experience painful periods and pain during sexual intercourse. |
