Urine protein 2+ indicates that the patient may have acute and chronic kidney diseases. Negative urine protein is normal, and positive urine protein is mainly seen in various glomerular diseases and tubulointerstitial diseases, common ones are cryptogenic nephritis, acute nephritis, chronic nephritis, acute progressive nephritis, acute interstitial nephritis, chronic interstitial nephritis. There are other secondary kidney diseases, such as diabetic nephropathy, lupus nephritis, hepatitis B-related nephropathy, myeloma nephropathy, etc. can also appear positive urine protein. If you find positive urine protein, you need to consult the hospital in time. Give positive and reasonable treatment after completing relevant examinations.