What does it mean to pass black blood clots during menstruation?

Feb 08, 2023 Source: Cainiu Health
Disease description:

My menstrual cycle has always been irregular. I've been married for six months and haven't used contraception for the past three months. However, this time my period came with black blood clots. What could be the reason for passing black blood clots during menstruation?

Doctor's answer (1)
Dr. Lv Aiming
The discharge of black blood clots during menstruation is primarily caused by endometrial shedding and congestion within the uterine cavity. Since blood color can change when exposed to air, no special treatment is usually required. However, it is important to monitor for other discomfort symptoms and maintain local hygiene, as reproductive system infections may also affect blood color and lead to increased vaginal and cervical secretions. During menstruation, pay attention to whether the menstrual flow is normal and whether there are discomforts such as abdominal pain. Ensure adequate rest and follow a light, easily digestible diet.