Usually, Chai Hu Gui Zhi Dry Ginger Soup will not be very useful in the treatment of low menstrual flow. Chinese medicine believes that scanty menstruation may be caused by kidney deficiency, blood deficiency, blood stasis and qi deficiency. Corresponding treatment should tonify the kidney, replenish blood, resolve blood stasis and benefit qi. Chai Hu, Gui Zhi, Dry Ginger Soup is composed of Chai Hu, Gui Zhi, Dry Ginger, Juniperus Communis Root, Scutellaria Baicalensis, Oyster, and Roasted Glycyrrhiza Uralensis. It is effective in dispersing cold, generating fluid and astringing Yin. It is used in treating symptoms such as cold and heat (the body is hot and cold at the same time), fullness and pain in the chest and hypochondrium (the chest and ribcage area collectively), sweating in the head, dysuria (unruly urination), thirst without vomiting, bitter and heartburn in the mouth, or scanty stools. It does not have therapeutic effect on low menstrual flow. Use with caution during pregnancy and menstruation, avoid tobacco, alcohol, greasy and cold food. Low menstrual flow can follow the doctor’s instructions to take motherwort granules and other proprietary Chinese medicines, specific need to consult a physician after the use of medication. Low menstrual flow need to consult a doctor in time, follow the doctor’s instructions to use the drug, do not take without authorization.