Menstruation with blood clots like pig’s liver is mostly an abnormal phenomenon, which may be caused by endometrial polyps, uterine fibroids, endocrine disorders and other reasons. However, if the menstrual flow is relatively large, it may also lead to menstrual blood clots, like pig liver, which is a normal phenomenon. Therefore, whether it is normal to have blood clots like pig liver in menstruation needs to be judged according to the causes. 1. abnormal phenomenon: (1) endometrial polyps: when women suffer from endometrial polyps, they mostly show the phenomena of heavy menstrual periods, prolonged menstrual period and irregular bleeding, but when the bleeding is heavy, it is possible to have menstrual clots like pig’s liver, and it is recommended that the polyps be removed surgically. (2) Uterine fibroids: uterine fibroids may also lead to prolonged menstruation and increased menstrual bleeding, which may be manifested as blood clots like liver during menstruation, and it is recommended to have surgical treatment to improve the symptoms. (3) Endocrine disorders: some women may suffer from endocrine disorders due to excessive mental stress and changes in environmental factors during menstruation, which may cause disorders in the levels of estrogen and progesterone in the body, leading to an abnormal increase in the amount of menstrual flow, which is manifested as menstrual blood clots like pig’s liver. It is recommended to pay more attention to remove the triggering factors, can improve the symptoms. 2. Normal phenomenon: Normal girls’ menstrual flow is generally 20-60ml, if the menstrual flow is relatively large, it is easy to lead to the formation of blood clots, thus causing menstrual blood clots like liver, which is a normal phenomenon and does not require special treatment. If you have any symptoms, it is recommended that you go to the hospital in time, and after the doctor’s interview, combined with the results of the relevant projects, to clarify the specific causes of the disease, and then follow the doctor’s instructions on the cause of treatment.