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Does Bai Tou Weng Tang treat prolonged menstrual periods?

Mar 22, 2025 Source: Cainiu Health
Dr. Zhang Xiuhong
Introduction
When prolonged menstruation is caused by damp-heat descending downward, Bai Tou Weng Tang can exert functions of clearing heat and detoxifying, cooling blood, and stopping dysentery, thereby eliminating damp-heat pathogenic factors from the body and regulating qi and blood circulation to effectively improve symptoms of prolonged menstruation. However, when prolonged menstruation is not caused by damp-heat, but rather by deficiency of qi and blood or invasion of cold pathogens, Bai Tou Weng Tang should not be used.

Generally, Bai Tou Weng Tang can be used to treat prolonged menstruation caused by damp-heat descending downward, but it is not suitable for prolonged menstruation due to Qi and blood deficiency or invasion of cold pathogens. If in doubt, it is recommended to seek medical advice in advance. Detailed analysis is as follows:

When prolonged menstruation is caused by damp-heat descending downward, Bai Tou Weng Tang can exert effects of clearing heat and detoxifying, cooling the blood, and stopping dysentery, thereby eliminating damp-heat pathogens from the body, regulating Qi and blood circulation, and effectively improving symptoms of prolonged menstruation.

When prolonged menstruation is not caused by damp-heat, but rather by Qi and blood deficiency or invasion of cold pathogens, Bai Tou Weng Tang should not be used. In women with Qi and blood deficiency, prolonged menstruation often accompanies symptoms such as reduced menstrual flow, pale color, and thin consistency; treatment at this time should focus on replenishing Qi and nourishing blood, regulating menstruation, and strengthening the fundamental condition. For women with invasion of cold pathogens, symptoms such as prolonged menstruation, dark purple menstrual color with blood clots, and cold pain in the lower abdomen may occur; treatment should focus on warming the meridians to dispel cold and activating blood circulation to regulate menstruation.

Therefore, when using Bai Tou Weng Tang to treat prolonged menstruation, syndrome differentiation and treatment must be conducted to clarify the specific cause and pathogenesis. At the same time, attention should also be paid to drug dosage and compatibility to avoid adverse reactions.

[References]

[1] Liu Yuxin. Differentiation of Cold and Heat in Bai Tou Weng. Journal of Henan Traditional Chinese Medicine, 2021, 41(08): 1155-1158.

[2] Yang Dan, Si Fuchun. Research Progress on Pharmacological Effects and Clinical Applications of the Classic Prescription Bai Tou Weng Tang and Prediction Analysis of Quality Markers [J/OL]. Liaoning Journal of Traditional Chinese Medicine University, 1-9 [2025-03-22].

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