In general, stable diabetic patients can fly, but some unstable diabetic patients with serious complications should not fly. 1. Diabetes is a common clinical metabolic disease, to determine whether diabetes can fly, need to be based on the specific circumstances, can not be generalized, there is obvious individual variability, mainly related to the severity of the disease. 2. In general, for the stabilization of diabetes patients, you can fly, remember to carry the required medication, as well as candy, cookies and other food. The main purpose is to prevent hypoglycemia from occurring during the airplane ride. Secondly, for diabetic patients with unstable conditions or serious complications such as diabetic ketoacidosis or hyperglycemic hyperosmolar coma, they are not allowed to fly. To summarize, diabetic patients need to strengthen their daily life management, take medication on time as prescribed by the doctor, maintain the stability of the disease, and go to the hospital for follow-up on time. If they have plans to go out, they need to inform the doctor in advance, and the doctor will judge whether they can go out according to their condition.