Functional hypothalamic amenorrhea(FHA) is a type of central amenorrhea characterized by the exclusion of organic lesions in the hypothalamus and pituitary，commonly occurring in young women.It is marked by low levels of gonadotropins and estrogen in the circulation.Professor MA Kun believes that FHA is an ovulatory disorder，closely related to the dysfunction of the kidney-reproduction-stimulating essence-thoroughfare and conception vessels-uterus axis.The main pathological process is kidney deficiency and blood stasis，with the fundamental pathogenesis involving insufficient kidney essence and inadequate filling of the thoroughfare and conception vessels.Blood stasis obstructs the collaterals，and the obstruction of the uterine vessels is persistent throughout the course.The clinical treatment focuses on nourishing the kidney，benefiting essence，and filling thoroughfare and conception vessels.The treatment should emphasize balancing and tonifying the yin and yang of the kidney to invigorate the kidney essence and qi.The approach is to use yin to stimulate yang and vice versa，combining methods to promote qi，warm yang，activate blood circulation，resolve blood stasis，and unblock the uterine vessels.Additionally，liver and spleen function should be regulated，and qi and blood should be harmonized.Treatment is staged based on the changes in the yin，yang，qi，and blood of the menstrual cycle，with adjustments made to regulate the thoroughfare and conception vessels.During the follicular phase，the proved formula Bushen Culuan Formula focuses on tonifying kidney，benefiting essence，activating blood circulation，and promoting follicle development，maturation，and discharge.During the luteal phase，Shoutai Pills combined with Wuzi Yanzong Pills are used with modifications to nourish the kidney，benefit essence，activate blood，and regulate menstruation.The treatment is adjusted according to symptoms，yielding significant results.