Kidney deficiency is mostly seen as kidney yin deficiency and kidney yang deficiency. Kidney Yin deficiency. Most of the symptoms include lumbar and knee soreness and weakness (a feeling of soreness and weakness in the lumbar and knee areas), dizziness and tinnitus, insomnia and forgetfulness, emaciation, five heart-heat (heat in the heart of the hands and feet, and self-consciousness of the heart and chest), hot flashes (a bout of fever), night sweating (abnormal sweating after falling asleep, and stopping of sweating after waking up), dry mouth and throat, and other manifestations. Men may experience spermatorrhea impotence and premature ejaculation, and women may experience low menstrual flow and amenorrhea. Kidney Yang Deficiency. Kidney yang deficiency refers to a deficiency of kidney yang (lack of yang energy in the kidneys), and the body loses warmth and warmth and a kind of coldness symptom occurs. Patients with kidney yang deficiency often have cold pain in the waist and knees, fear of cold limbs (fear of coldness, cold limbs), dizziness, 晄white color, and lack of mental performance. Men may experience impotence, premature ejaculation, and spermatorrhea, while women may experience a high amount of scanty diarrhea and infertility due to uterine coldness. When the symptoms of kidney deficiency appear, it is necessary to seek the help of professional Chinese medicine practitioners in time and carry out diagnosis and treatment under the guidance of doctors.