The difference between menstruation and abnormal bleeding lies in the time of occurrence, bleeding pattern, duration, bleeding volume and accompanying symptoms.
1. Time of occurrence: Menstruation occurs with a certain regularity, usually with a cycle of about 21-35 days, which varies from person to person. Abnormal bleeding has no regularity and can occur at any time.
2. Bleeding pattern: Menstruation is a predictable bleeding pattern. Most women start their menstrual bleeding with a relatively small amount, which increases within 1-2 days and then gradually decreases to the end. Abnormal bleeding is unpredictable and the bleeding pattern varies depending on the cause.
3. Bleeding duration: menstrual bleeding usually lasts 2-8 days and does not bleed for a month; abnormal bleeding may last for a month, dripping and spotting.
4. Bleeding volume: the average woman’s menstrual flow is 20-60 ml, while the abnormal bleeding volume varies from spotting to heavy bleeding.
5. Accompanying symptoms: menstruation is often accompanied by low back pain, abdominal pain, abdominal cramps and other discomfort. Abnormal bleeding can be accompanied by different symptoms depending on the cause of the disease.
When abnormal bleeding occurs, it is necessary to consult a doctor in time to identify the cause of bleeding and treat it actively.