There are many reasons for sudden hearing loss in one ear: 1. Patients have a large amount of cerumen inside their ears, and over time this cerumen will gather together and form a mass-like tissue blocking the patient’s external ear canal, affecting the patient’s hearing; 2. Patients are likely to have rhinitis, which often induces otitis media in patients, leading to tinnitus accompanied by hearing loss; 3. Some patients are anxious because of Sudden hearing loss, also called sudden deafness, can occur due to anxiety, staying up late, or poor rest. Regardless of which of the above causes of hearing loss, you must go to the hospital to actively check and treat to avoid delaying the patient’s condition, in life the patient must protect the ear, try to avoid going to a particularly noisy environment.