What is the difference between menstruation and abortion bleeding?

The difference between menstruation and abortion bleeding is bleeding time, bleeding volume, bleeding nature, accompanying symptoms, blood hCG detection, etc. 1. Bleeding time Menstruation usually has a relatively fixed cycle, monthly on time; abortion bleeding is not fixed time, generally occurs after menopause. Because menstrual cycle is regulated by the regular changes in hormone levels in women, it has certain periodicity and stability. The abortion bleeding is often after pregnancy, due to various reasons leading to embryo or fetus can not continue to develop and appear. 2. The amount of bleeding menstrual bleeding is relatively stable, generally within the normal range, not too much or too little. The amount of abortion bleeding may fluctuate greatly, sometimes may be large, especially when incomplete abortion, may also be small, the beginning of the performance for bleeding. 3. The nature of bleeding menstrual blood is mostly dark red, not coagulated. The nature of abortion bleeding may be more bright red, and may be accompanied by blood clots. 4. Associated symptoms Menstruation may be accompanied by abdominal distension, waist acid and other discomfort, but generally mild; Abortion bleeding is often accompanied by abdominal pain and other symptoms. 5. Blood hCG test is negative during menstruation, while blood hCG is usually positive during abortion bleeding. If abnormal bleeding occurs, especially postmenopausal bleeding, seek medical attention in time, and identify the cause through relevant examinations such as ultrasound and blood hCG, so as to carry out targeted treatment.