Post-cataract surgery patients with fever should determine whether it is a local burning or a generalized fever. If it is a slight local redness, swelling and fever, it can be treated with local medication, and the symptoms will disappear in 3-5 days or a week or so, and the patient’s vision will be restored after surgery. If it is a generalized fever, it may be necessary to consider whether it is a medical problem, whether it is a cold or fever, or any other reason, and you should go to the internal medicine department for consultation. Cataract surgery itself does not cause fever. If this kind of generalized fever occurs, it is recommended to look for the cause and what is the problem.