Diabetes can not hold urine may be caused by urinary system infection, neurogenic bladder, cerebrovascular disease, etc. It is recommended to consult a doctor in time to clarify the condition. 1. Urinary system infection: diabetic patients are susceptible to infections when their blood sugar is high, which may lead to their urinary system infection. The symptoms may be manifested as frequent urination, urinary urgency, urinary pain, etc., and in severe cases, they may not be able to hold their urine. 2. Neurogenic bladder: diabetic patients with high blood glucose are prone to complications in the nervous system complications, affecting the bladder, thus suffering from neurogenic bladder. This leads to the condition of not being able to hold in urine. 3. Cerebrovascular disease: diabetic patients in the case of high blood glucose, prone to complications in the macrovascular disease, thus affecting the cerebral blood vessels, resulting in cognitive dysfunction, leading to the emergence of their inability to hold urine. Diabetic patients must control their blood sugar, and if complications occur, they must seek medical attention in a timely manner.