A woman with flesh-like tissue discharge during menstruation can be a miscarriage, and this condition is mainly considered as a biochemical pregnancy. In many cases, pregnancy is determined by blood or urine HCG tests, and the presence of a gestational sac is not visible on ultrasound, but vaginal bleeding occurs as if it were a menstrual period, causing the meconium and fertilized egg to be expelled from the uterine cavity of the patient, so miscarriage occurs. In addition, patients can also have menstrual flesh-like tissue discharge in the non-pregnant state, which is mainly formed by large, exfoliated endometrium, mixed with blood and mucus. If the patient is menstruating and the endometrium is complete, the endometrium will be mixed with blood and mucus from the patient’s cervix and vagina in the process of discharge, so it looks like rotten flesh-like tissue, which mostly has no odor and the patient has no discomfort.