Cerumen embolism can cause different clinical symptoms depending on the size of the cerumen. If the cerumen is relatively small, there may be no obvious clinical symptoms. If the size of cerumen gradually builds up and increases, or if it is hard and has blocked, or partially blocked the outer ear canal, clinical symptoms such as tinnitus, hearing loss, ear congestion, or itching of the ear may occur. If you encounter a humid environment, such as going swimming or taking a bath that causes water to enter the external ear canal, some patients’ ears will repeatedly flow with water, pus, or itch, and some ear digging injuries will trigger painful ear symptoms. When this happens, it is important to go to the ENT department for an otoscopic examination, which requires thorough ear canal cleaning and rinsing, and then examining the ears, and then treating them separately if there is otitis externa.