There are differences between low testosterone and kidney deficiency in terms of concept, etiology, symptoms and treatment. 1. Concept: Low testosterone belongs to the concept of western medicine. Testosterone is one of the main male sex hormones, which can be secreted by both female ovaries and male testes, and it has an important impact on the health of men and women. Kidney deficiency refers to the deficiency of kidney essence, kidney yin or kidney yang, which can be categorized into kidney yin deficiency, kidney yang deficiency and other types, and belongs to the concept of Chinese medicine. 2. Causes: Low testosterone can be caused by testicular insufficiency, pituitary tumor, liver insufficiency and other reasons. Kidney deficiency is mostly caused by congenital insufficiency or acquired indolence in sexual intercourse, overwork and so on. 3. Symptoms: Low testosterone may have lower libido, fatigue, weakness, muscle reduction and other manifestations. Symptoms of different types of kidney deficiency vary. For example, kidney yin deficiency can be manifested as hot flashes and night sweating (abnormal sweating after going to sleep, and sweating stops after waking up), dizziness and tinnitus, and lumbar and knee soreness and tenderness (a feeling of lumbar and knee soreness and tenderness), etc. Kidney yang deficiency can be manifested as lumbar and knee soreness and tenderness, fear of coldness and chills, and clear and long urination. 4. Treatment: In addition to the treatment of low testosterone, exogenous androgen can be used, such as intramuscular injection of testosterone propionate or oral drug testosterone undecanoate. Kidney deficiency should be diagnosed with medication, such as kidney yin deficiency, choose six flavors of dihuang pill, Zhi Bai Di Huang Pill and other drugs; kidney yang deficiency, choose the right return pill, Wu Zi Diffractive Zong Pill and other drugs. All of the above drugs should be used under the guidance of a doctor, and it is recommended that people with low testosterone and kidney deficiency should consult a regular hospital, be diagnosed and treated by a professional doctor, and follow the doctor’s instructions to use the medication.