Summary of case history,　This case is an 10-year-old girl, who come to see doctor because of the breasts developed early for 2 year, and menstrual cramps 1 day. The main clinical manifestations were that hard lumps could be felt on both breasts and pain when pressed, and menstrual cramps. The girl had hot arch and palm, was afraid of heat and sweat a lot. She had normal eating and sleeping, and no peculiar smell in her mouth. She had a bowel movement every 1~2 days, and normal urination. Family history and past medical history are not special.,Symptoms and signs,　Clear consciousness, good spirit, red lips, red face, red tongue, thin yellow moss, thin and fast pulse.,TCM disease and syndrome,　Precocious puberty yin deficiency and excessive fire syndrome.,TCM treatmentnourish,　yin to clear heat and soothing the liver to clear heat,Western medicine diagnosis,　Central precocious puberty,Therapeutic methods,　In TCM treatment, the principle is to nourish yin and lower fire, Combination of internal and external treatment methods, including Chinese medicine, sticking, and intradermal acupuncture.,Clinical outcomes,　In the follow-up consultation, the symptoms were improved. The previous treatment methods were used to consolidate the curative effect. The growth rate of bone age is slowed down and No menstrual period after taking the medicine.