In Chinese medicine, uterine cold actually refers to cold condensation and blood stasis, which can lead to irregular menstruation, dysmenorrhea and infertility in women. The difference between qi stagnation and blood stasis (blood stagnation due to lack of qi flow) and cold coagulation and blood stasis lies in the difference in the cause and mechanism of the disease. According to Chinese medicine, qi is the commander of blood (qi commands the operation of blood), and qi has the function of promoting the circulation of blood. A lack of qi (a lack of smooth operation of the body’s gases) will lead to blood stasis due to poor blood flow, i.e., qi stagnation and blood stasis. Common symptoms of Qi stagnation and blood stasis include pain in the two hypochondriacs, abdominal distension, scanty menstrual flow, dark color and dysmenorrhea. Cold is stagnant in nature and is the main collector. Cold injures people, easily causing stagnation of qi, blood and fluid, and blockage of the meridians, resulting in cold condensation and blood stasis. Cold condensation and blood stasis is mostly caused by external cold, or excessive eating of cold and raw food, which leads to the internalization of cold and stagnation of the meridians. Common symptoms of Cold Stagnation and Blood Stasis are cold hands and feet, cold pain in the abdomen, delayed menstruation, dark purple color of menstruation with blood clots, and menstrual cramps. The causes and mechanisms of Qi stagnation and Blood stasis are not exactly the same as those of Cold Stagnation and Blood stasis, and the treatment methods are naturally different. It is necessary for a professional Chinese medicine doctor to differentiate between the two by taking into account your own symptoms and using methods such as activating Qi and activating Blood (promoting the flow of Qi to make the blood circulate) or warming the meridians and dispersing Cold (warming the meridians and dispelling Cold in the body to get rid of the Cold in the body), and it is not advisable to treat the condition on your own to avoid delaying the condition.