If the menstrual blood is purple and dark, it is often seen in individuals who are obese with dampness, or in maidservants and concubines suffering from emotional depression; such cases are generally not suitable for this treatment (even if modifications are made, they must be carefully considered). Whenever menstruation is delayed, or the flow is scanty or absent, these are all indications of Blood Cold or Blood Deficiency. The Chi pulse will necessarily be weak and thready. Add Guixin (Cortex Cinnamomi Cordatae) 5 qian (3 qian in summer), and Huangqin (Radix Scutellariae) 1 liang (prepared by stir-frying with honey). If menstruation occurs prematurely