Cerumen stuck to the eardrum is not very harmful, but usually causes ear discomfort, sometimes tinnitus, and affects hearing. There are cerumen glands inside the normal external ear canal that secrete cerumen. It is not recommended that patients remove the cerumen by themselves, as it may damage the external ear canal and damage the eardrum. If there is cerumen in the ear canal or eardrum, it should be examined at a hospital and removed by a professional doctor with a small cerumen hook under an endoscope. If it sticks tightly and is hard, it is recommended to soak the cerumen with cerumen softeners, such as 5% sodium bicarbonate, cerumen solution for 2-3 days, soften it and then rinse out the cerumen under the endoscope, which will not seriously affect the ear canal or eardrum. If you find that your ears are a little stuffy, uncomfortable or have a foreign body sensation or hearing loss, you should go to the hospital for further examination. If you find that the cerumen is stuck to the eardrum, it can be removed by outpatient endoscopy and there is no major harm to the human body.