Kidney Yin deficiency or Kidney Yang deficiency are symptoms of memory loss. Memory loss is mainly caused by insufficient Kidney essence and loss of nourishment for the cerebral medulla oblongata (loss of nourishment for the cerebral medulla oblongata). Kidney essence deficiency suggests a loss of kidney essence, which is mainly caused by congenital deficiency of kidney essence, loss of nourishment later in life, injury to the kidneys due to prolonged illness, or injury to the kidneys due to excessive physical exertion. Kidney essence insufficiency can be seen in children with stunted growth and development, and in adults with memory loss, premature aging, tinnitus, deafness, trance, slow movement, weakness of the lower limbs, slow reaction, and so on. The treatment of renal essence deficiency should first correct the cause of the disease; then according to the patient’s other symptoms to be dialectic for kidney yin deficiency or kidney yang deficiency. Patients with kidney yin deficiency can use Zuo Gui Wan and Liu Wei Di Huang Wan to nourish yin and fill in essence to replenish the kidneys, while patients with kidney yang deficiency can use Right Angelica Pill and Right Angelica Drink to warm up the kidneys and assist yang to fill in essence. It is recommended to consult a doctor for timely treatment under the guidance of the doctor’s diagnosis, so as to avoid delaying the condition.