There is no fastest way to urinate in diabetes, such as suffering from cystitis, urethral stone, diabetic nephropathy will affect urination, it can be treated according to the cause of the disease, if there is cystitis, you can drink more water to promote urination. 1. Cystitis: it is an inflammatory lesion of the bladder caused by various reasons, and patients have symptoms such as frequent urination, urgency, and painful urination, etc. They can drink more water to promote urination, and use antibiotics under the guidance of the doctor to treat it if necessary. 2. Urethral stones: stones embedded in the urethra, causing urinary obstruction. The best treatment should be chosen according to the size of the stone. Smaller stones can be treated with extracorporeal lithotripsy, while larger stones may require surgical treatment. 3. Diabetic nephropathy: diabetes mellitus complicating diabetic nephropathy can have proteinuria, hypertension, edema and other conditions, in severe cases of oliguria, oral diuretics can be prescribed to accelerate urination, such as furosemide. Diabetic patients who have difficulty urinating are advised to seek medical attention.