What does it mean if menstrual blood is black?
Dec 31, 2021
Source: Cainiu Health
Dr. Lei Ling
Introduction
1. Deficiency of both Qi and Blood: This refers to what is commonly known as “insufficiency of Qi and Blood” in Traditional Chinese Medicine (TCM). During the active phase of this condition, typical symptoms include dark-colored menstrual blood, delayed menstruation accompanied by blood clots, lower abdominal pain, and coldness in the hands and feet.
2. Kidney Deficiency: Numerous factors can lead to Kidney Deficiency, including excessive physical strain and frequent sexual activity.
Many women notice dark-colored menstrual blood on the first and last days of their period, accompanied by notably light flow and frequent dysmenorrhea. What causes menstrual blood to appear black? From the perspective of Traditional Chinese Medicine (TCM), black menstrual blood is primarily attributed to two underlying patterns: Qi stagnation with Blood stasis and Cold in the Blood. These conditions can be addressed through dietary adjustments and maintaining a regular, healthy sleep-wake schedule. Below, we explain the possible causes of black menstrual blood.
What Causes Black Menstrual Blood?
1. Deficiency of Both Qi and Blood
Many women experience deficiency of both Qi and Blood—a TCM pattern commonly referred to as “insufficient Qi and Blood.” Typical symptoms during this condition include blackish menstrual blood, delayed menstruation with clots, lower abdominal pain, and cold hands and feet. Treatment typically involves warming the meridians, dispelling Cold, and simultaneously tonifying both Qi and Blood using appropriate herbal formulas.
2. Kidney Deficiency
Some individuals mistakenly believe that Kidney deficiency occurs only in men; however, women are also susceptible. Common contributing factors include excessive physical fatigue and frequent sexual activity. In women, Kidney deficiency may manifest as abnormal menstruation—including black menstrual blood—as well as low back and knee soreness and increased nocturia. Management focuses on Kidney-tonifying herbal therapy.
3. Endometrial Polyps
Black menstrual blood may also indicate endometrial polyps—a common gynecological condition in women caused by excessive endometrial hyperplasia. If left untreated, endometrial polyps carry a risk of malignant transformation.
Additional Information: How to Regulate Black Menstrual Blood
Once the underlying cause of black menstrual blood has been identified, appropriate regulation measures should be implemented. During such periods, women should maintain emotional calm, follow a light and balanced diet, protect themselves from Cold exposure, and adhere to a consistent daily routine—ideally sleeping before 11 p.m. and waking at 7 a.m. Strict dieting or weight-loss medications should be avoided, as these may exacerbate menstrual irregularities or even lead to amenorrhea.
Dietary considerations during menstruation are crucial for managing black menstrual blood. Based on individual constitution, women should avoid foods with cooling properties (e.g., pears, kelp), spicy seasonings (e.g., Sichuan pepper, black pepper), overly salty foods, and strong tea or coffee.
If black menstrual blood is accompanied by prolonged duration and heavy flow, standard hemostatic measures may be supplemented with hormonal therapy or dilation and curettage (D&C) as clinically indicated. Alternatively, oral blood-tonifying medications or intravenous therapy may be administered.
The above outlines the primary causes and management strategies for black menstrual blood. We hope this information proves helpful to you.
