What Causes Black-Colored Menstrual Blood?
Dec 30, 2021
Source: Cainiu Health
Dr. Lei Ling
Introduction
1. Qi stagnation and blood stasis: In women, this pattern manifests as irregular menstrual cycles, with variable menstrual flow—sometimes heavy, sometimes scanty—and menstrual blood typically appearing purplish-red.
2. Deficiency of both Qi and Blood: This is a common condition among women. Qi and blood deficiency can lead to menstrual irregularities, poor menstrual flow, fatigue, and cold intolerance during menstruation.
3. Kidney deficiency: Menstrual flow may be either excessive or scanty, and the blood color tends to be red or dark red.
The color of menstrual blood is not, in fact, a reliable indicator of whether menstruation is normal. When menstrual flow is heavy and bleeding occurs rapidly, the blood tends to appear bright red. Conversely, when flow is light, the blood may appear dark brown or black. So, what causes menstrual blood to appear black? Below, we address this question.
What Causes Menstrual Blood to Appear Black?
1. Qi Stagnation and Blood Stasis
Women with irregular menstrual cycles often experience variable flow—sometimes heavy, sometimes scanty—typically appearing purplish-red and frequently accompanied by clots. Additional symptoms may include lower abdominal pain, chest tightness, and tongue discoloration with dark spots. In such cases, treatment should focus on promoting blood circulation, resolving stasis, regulating Qi flow, and relieving pain.
2. Deficiency of Both Qi and Blood
Qi and blood deficiency is common among women. This deficiency can lead to menstrual irregularities, poor menstrual flow, fatigue, and cold intolerance during menstruation. After menstruation, women are advised to consume nourishing soups such as jujube and longan soup, which effectively replenish Qi and blood.
3. Kidney Deficiency
Kidney deficiency in women may cause irregular menstrual cycles and variable flow—either excessive or scanty—with blood appearing red or dark red. Common accompanying symptoms include dizziness, blurred vision, low back and knee soreness, vertigo, and frequent urination. If the tongue appears pale or the pulse becomes slow, timely kidney-tonifying and menstrual-regulating therapy is recommended.
4. Detoxification
Menstruation is, in part, the body’s natural detoxification process. Dark-colored menstrual blood may indicate a relatively high toxin load—often resulting from prolonged consumption of acidic foods or excessive use of Western medications, leading to accumulation of acidic toxins. The body utilizes menstruation as an opportunity to eliminate these toxins. Once detoxification is complete, menstrual patterns typically normalize.
The above outlines the primary causes of dark-colored menstrual blood. We hope this information is helpful to you.
