Low menstrual flow can be caused by kidney deficiency, blood deficiency, blood stasis, phlegm-dampness obstruction, etc. It can be treated by Qui Kidney Pills, Nourishing Blood Soup, Tao Hong Four Substances Soup, Cang Fu Guiding Phlegm Pills, etc. 1. Gui Kidney Pill: composed of Radix Rehmanniae Praeparata, Cornu Cervi Pantotrichum, Chinese Yam, Radix Angelicae Sinensis, Fructus Lycii, Semen Cuscutae, Cortex Eucommiae, Poria, it has the effect of tonifying yin and benefiting yang, nourishing blood and filling up essence. It can be used to treat scanty menstruation which belongs to the kidney deficiency syndrome, manifesting as scanty menstruation accompanied by lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar and knee regions), pale tongue, and sluggish pulse. 2. Nourishing Blood Soup: composed of Radix Panax Ginseng, Radix Rehmanniae Praeparata, Poria, Rhizoma Ligustici Chuanxiong, Radix Angelicae Sinensis, Radix Paeoniae Alba, Astragalus, and Radix et Rhizoma Dioscoreae, which is beneficial to vital energy and nourishes blood (replenishing the body’s vital energy). It can be used for treating menstrual bleeding in cases of blood deficiency, manifesting as scanty menstrual flow, pale pawpaws and nails, pale tongue and weak pulse. 3. Tao Hong Si Wu Tang: composed of Radix Angelicae Sinensis, Radix Rehmanniae Praeparatae, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Alba, Radix et Rhizoma Safflorae, and Rhizoma Polygoni Multiflori, with the efficacy of invigorating Blood and removing Blood stasis (to promote Blood circulation and eliminate Blood stasis). It can be used to treat menstrual bleeding with blood stasis, which is characterized by scanty menstrual flow, purple color with blood clots, dark tongue with petechiae, and astringent pulse. 4. Cang Fu Guiding Phlegm Pill: composed of Cang Zhu, Xiang Fu, Shen Qu, Poria, Pinellia, Rhizoma Pinelliae, Rhizoma Ligustici Chuanxiong, Pericarpium Citri Reticulatae, Hovenia Citri Reticulatae and Gallus gallus domesticus, with the effect of drying dampness and resolving phlegm (removing phlegm in the body by means of drying dampness medication). It can treat phlegm-dampness syndrome, which is characterized by scanty menstrual flow, obesity, pale tongue, white and greasy coating, and smooth pulse. If the menstrual flow is low, it is necessary to consult a clinician and follow the doctor’s instructions.