Ovulation as usual without menstruation may be related to having just given birth to a child, uterine adhesions, endocrine disorders and so on. 1. Just after giving birth to a child: If you have just given birth to a child or just had a miscarriage, the uterine lining has not fully recovered, and the endometrial lining is severely damaged, which can easily lead to ovulation but no menstruation. Menstruation can be resumed only after the lining of the uterus has fully recovered. 2. Uterine adhesion: Infection of the uterine cavity due to various reasons may cause uterine adhesion. At this time, the endometrium cannot proliferate and shed normally, resulting in irregular menstruation, but can ovulate normally. 3. Endocrine disorders: the pressure of society, work and life, high tension of nerves, emotional changes, etc. will lead to endocrine disorders, so that the uterine lining can not be normal proliferation and shedding, and there may be only ovulation but no menstruation. In addition to the above, the absence of menstruation as usual ovulation can also be due to other reasons. It is recommended to consult a doctor for further examination to identify the cause and to carry out targeted treatment or therapy with the help of the doctor.