Kidney qi deficiency and kidney essence deficiency are both manifestations of kidney deficiency, with some differences mainly in clinical symptoms. 1. Kidney qi deficiency: Patients with kidney qi deficiency mainly show symptoms such as fatigue (mental exhaustion, physical weakness), lumbar and knee weakness (feeling of lumbar and knee weakness), mental depression, etc. Male patients may also have weakened sperm hiding function, impotence and premature ejaculation, spermatorrhea and urination, etc. Female patients may have low menstrual flow, amenorrhea, and menstrual cycle disorders. Female patients may have symptoms such as low menstrual flow, amenorrhea and menstrual cycle disorders. 2. Kidney essence insufficiency: The clinical manifestations of kidney essence insufficiency vary in patients of different ages. In infancy and childhood, it is mainly manifested in late walking or standing, thinning hair, late teething and late talking. In adolescents, it is mainly manifested in nervous exhaustion (mental fatigue and physical weakness), premature ejaculation and impotence. Middle-aged and old-aged patients mainly manifest in premature aging, graying of hair, loss of teeth and so on. Whether it is insufficient kidney essence or insufficient kidney qi, all of them need to be regulated, and patients are advised to go to regular Chinese medicine hospitals for consultation and treatment in time.