Patients with diabetes can usually undergo an MRI. MRI is a magnetic resonance test that applies the phenomenon of magnetic resonance to produce a magnetic resonance signal that creates an image. It is a safe, radiation-free, and accurate imaging test that can provide early detection of acute cerebrovascular and vascular stenosis in diabetic patients. However, MRI is not suitable for patients with pacemakers, prosthetic metal heart valves, or metal residues in vital organs. For diabetic patients who are on insulin pump therapy, magnetic resonance examination can be performed after removing the insulin pump, and then connecting the insulin pump after the examination, which generally will not cause any damage to the patients. It is recommended that diabetic patients consult a medical professional before undergoing an MRI to determine whether an MRI can be performed.