After abortion, the second period is often on time because the hormone level in the body will basically return to normal after half a month of abortion. If the second period is not on time after abortion, it may be caused by endocrine disorders and has little to do with the abortion itself. If you are recently tired or under stress, or if there is a change in the environment, it may lead to endocrine disorders and delayed or early menstruation. It is recommended to review whether you have taken any medication recently. If you have not taken any medication and it is not caused by endocrine disorder, it is recommended to rule out the possibility of other diseases, such as polycystic ovary syndrome or premature ovarian failure, if your menstruation is abnormal, and to have a blood test for sex hormone six.