Urine specific gravity of 1.030 needs to be clarified to determine the cause of its elevation and targeted treatment. If it is caused by physiological reasons such as drinking too little water, appropriate hydration can be, without special treatment; if it is caused by pathological reasons such as glomerulonephritis, nephrotic syndrome, diabetes mellitus and other diseases, need to be based on the original disease, drug treatment. 1. Physiological causes: mostly caused by drinking too little water or sweating too much, can be supplemented with appropriate amount of water, the specific gravity of urine can be returned to normal, without special treatment. 2. Pathologic increase: (1) glomerulonephritis, nephrotic syndrome: the patient’s urine contains more protein, resulting in increased urine specific gravity, need to actively treat the primary disease, can apply ACEI or ARB drugs, such as captopril, irbesartan and so on to lower blood pressure and reduce urinary protein, if the patient has no obvious contraindications, but also the application of glucocorticosteroids and cytotoxic drugs, such as prednisone, cyclophosphamide and so on. (2) Diabetes mellitus: patients may also have symptoms of increased urine specific gravity due to the increased concentration of solutes in the urine. It can be treated with rehydration therapy and blood sugar control, such as the application of insulin. Elevated urine specific gravity may also have other reasons, it is recommended that patients go to the regular hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.