Constipation generally does not cause elevated blood sugar. Constipation generally refers to chronic constipation, which mainly refers to dry stools, reduced frequency, difficult or incomplete bowel movements, and a significant reduction in the number of times the stools are completely emptied without the use of laxatives. It can be caused by gastrointestinal diseases, systemic diseases involving the digestive tract, such as diabetes, neurological disorders, and so on. In diabetic patients, autonomic neuropathy involving the gastrointestinal tract may cause symptoms of constipation, but constipation does not usually cause high blood sugar. When constipation occurs, it is recommended to start from adjusting the diet, usually eat more coarse grains and vegetables containing high crude fiber, such as leeks, celery, spinach, etc., to promote gastrointestinal peristalsis, and appropriate exercise exercise can help defecation. When constipation or abnormal elevation of blood glucose occurs, you should consult your doctor to clarify your condition and actively diagnose and treat it.