If there is something like meat in menstruation, it is an abnormal phenomenon and may be caused by the following reasons: first, membrane-like menstruation, i.e., normally the endometrium is discharged in the form of fragments during menstruation, but membrane-like menstruation is discharged in the form of large pieces of endometrium, which can cause severe menstrual pain, because after all, the discharge of such large pieces of endometrium causes strong contractions of the uterus, so it can lead to The reason for the painful menstruation may be inflammation or overactivity of the endometrium, so it is recommended to have it checked and treated. The second one is caused by miscarriage. Although there is no obvious history of menopause, vaginal bleeding is mistaken for menstruation when it comes to menstruation, but it is actually a miscarriage caused by pregnancy.