Diabetes is likely to cause frequent urination. The cause of frequent urination in diabetes mellitus is mainly because blood glucose is too high, exceeding the renal glucose threshold, the glucose filtered out through the glomerulus can not be completely reabsorbed by the renal tubules, forming osmotic diuresis; the higher the blood glucose, the more urinary glucose is excreted, and the more the urine volume is increased. On the other hand, since diabetic patients often feel thirsty, they will drink more water, and drinking more will further aggravate polyuria. Diabetic patients should seek prompt medical attention, eat reasonably, exercise moderately, take regular glucose-lowering drugs or insulin injections under doctor’s guidance, and actively control their blood glucose levels. It is important to note that diabetes can cause frequent urination, if the body appears uncomfortable symptoms, you need to go to the hospital in a timely manner, so as not to delay the condition.