Patients with Kidney-Yang deficiency may have different tongue coatings depending on the severity of their condition. Kidney yang deficiency patients can have no obvious changes in the tongue; kidney yang deficiency patients can be seen in the heavier tongue pale white, thin white moss or white greasy moss; kidney yang deficiency with yang deficiency water flood (yang qi deficiency caused by the body of the water run obstacles) can be seen tongue body fat, tongue edge with teeth marks, tongue pale white, water slippery moss. Kidney yang deficiency patients, the condition is still light, the tongue can be no change, can be seen light red tongue, thin white moss. Further aggravation of the disease, kidney yang deficiency patients symptoms are gradually aggravated, can be seen fear of cold, fear of cold, waist and knees, cold, sallow or sallow face, fatigue, shortness of breath, impotence, premature ejaculation, female infertility, etc., usually see the tongue texture pale white, moss thin white or white greasy. Yang deficiency water flooding is kidney yang deficiency leads to water running obstacles, the patient can be seen urinary incontinence, edema of the lower limbs, waist and knee pain worse than before, coughing and shortness of breath, etc., generally visible tongue pale white, tongue fat, tongue edge with teeth marks, slippery moss or greasy slippery moss. If there are uncomfortable symptoms, it is recommended to consult a professional doctor for diagnosis and treatment.