The Monthly Agony of Primary Dysmenorrhea: A Sign That Your Uterus Is Cold?

Modern medicine identifies prostaglandin as a primary cause of dysmenorrhea, especially primary dysmenorrhea. During menstruation, prostaglandin is secreted in excess from the endometrium to contract the myometrium and expel menstrual blood. When these contractions become overly forceful or frequent, blood supply to the uterus temporarily declines, leaving uterine tissues deprived of oxygen. This mirrors how lactic acid accumulates in muscles during intense exertion to create discomfort. In this process, severe lower abdominal pain and lower back pain emerge. Prostaglandins also heighten pain sensitivity and trigger inflammatory responses. Notably, the concept of a cold uterus in Donguibogam aligns closely with these modern physiological mechanisms. When the body encounters cold environments or stress, the sympathetic nervous system activates. Hyperactivity of the sympathetic nervous system constricts blood vessels, further impeding blood supply to the uterus. Impaired circulation intensifies oxygen deprivation in the myometrium and can amplify the effects of prostaglandin. A cold environment sensitizes the uterus and lowers the pain threshold, causing greater discomfort from the same level of prostaglandin. Cold qi can also disrupt the immune system that oversees inflammatory responses. Chronic cold qi impairs circulation and slows cellular metabolism, accelerating the buildup of inflammatory compounds. Consequently, various pro-inflammatory cytokines beyond prostaglandin are released, aggravating dysmenorrhea further. While modern medicine highlights prostaglandin as the direct trigger of menstrual pain, Donguibogam offers meaningful insight into the internal environment that fosters its excessive secretion and heightens sensitivity—specifically poor circulation and heightened inflammation. Rather than relying solely on an analgesic to suppress discomfort, warming the uterus and improving pelvic circulation provide a more foundational approach. When the uterus remains warm and healthy, prostaglandin functions as intended without generating unnecessary pain.