Lu Xuan shook his head, not offering any consolation, but rather thought for a moment and said, "For those with menstrual disorders, there are generally three causes."
"The first is qi stagnation and emotional distress, with disharmony in kidney qi, liver qi stagnation. The Chong meridian and the major vascular network of the Shaoyin both originate from the kidneys. The Chong and Ren meridians converge in the womb, liver qi stagnates, kidney qi weakens, emotions become irritable, and consequently, menstruation becomes irregular.
The second cause is the accumulation of cold and wind chill. Cold invades the uterus, obstructing the true Yang. Insufficient Yang Qi generates cold, and when both qi and blood are cold, the uterus contracts. Cold qi leads to blood stasis, causing menstruation to be delayed and appearing as black clots, with a feeling of sinking pain in the lower abdomen. Such patients are generally sensitive to cold, with a pale complexion."
