Guiding opinions:

There are three reasons:

1, some women are born without obvious hymen, while others will shrink and disappear.

2, the hymen is cracked, the hymen is thick and elastic, and the penis cannot be destroyed during sexual intercourse.

3. In addition, the hymen will naturally rupture due to strenuous exercise, riding, cycling, dancing, masturbation, trauma, childbirth, etc. Bleeding and pain may be slight and not easy to detect.