Look at cold and heat: Kidney yang deficiency means fear of cold, cold hands and feet; kidney yin deficiency means fear of heat, five palpitations and heat, and dry mouth and tongue.

Look at the spirit: Kidney yang deficiency is accompanied by symptoms such as fatigue, lack of energy, fatigue, shortness of breath, laziness, depression and unhappiness; kidney yin deficiency is often accompanied by mental restlessness, irritability, and bad temper. Symptoms such as prone to getting angry.

Looking at medical pain: In most cases, kidney yang deficiency will cause pain in the waist and legs or cold pain in the waist and knees; kidney yin deficiency will often cause symptoms such as soreness and weakness in the waist and knees, and weakness in the legs.

Look at the tongue: Kidney yang deficiency has a pale tongue with white and thick tongue coating; kidney yin deficiency has a red tongue, less body fluid, less tongue coating, thinner or no tongue coating.

Look at the complexion: If the kidney yang is deficient, the complexion will be white or dark, or bluish-white; if the kidney yin is deficient, the complexion will be mostly crimson.

Look at sleep: Kidney yang deficiency is prone to drowsiness, lethargy, and dreaminess; kidney yin deficiency is prone to insomnia, dreaminess, and teeth grinding.

Sweating can be seen: Kidney yang deficiency is mostly caused by spontaneous sweating, and it is easy to sweat or sweat more. This kind of sweating is often not caused by fatigue, hot weather or wearing too warm clothes; Kidney yin deficiency causes sweating on the hands and feet, mostly night sweats. Sweating occurs while sleeping and stops when you wake up.

Look at the urine: Kidney yang deficiency has clear and long urine, frequent nocturia, and is often accompanied by symptoms such as frequent urination, urgency, and incontinence; kidney yin deficiency has mostly yellow or short red urine and oliguria. wait.

Look at the stool: People with kidney yang deficiency have loose stools and are prone to diarrhea; kidney yin deficiency has dry and yellow stools.

Look at the body shape: those with kidney yang deficiency are often fat or swollen, accompanied by symptoms such as internal water retention and difficulty urinating; those with kidney yin deficiency are often emaciated, accompanied by symptoms such as dry mouth and tongue, lack of body fluids and other symptoms .