The possible clinical causes of wet and itchy ears include oily cerumen accumulation, otitis externa, and eczema of the external auditory canal. 1. Oily cerumen accumulation: Some people have oily secretions in their ears, which makes it easy to form oily cerumen. If they do not pay attention to regular cleaning, the cerumen will accumulate in the external auditory canal for a longer period of time, resulting in itching and moisture in the ear. 2. Otitis externa: This condition is usually associated with bacterial infection of the external auditory canal. The mucous membrane of the external auditory canal is attacked by pathogenic bacteria, which will cause increased secretion, itching and pain in the ear canal. 3. Eczema of the external auditory canal: this is a common clinical allergic disease, stimulation of the mucous membrane and skin in the ear will increase secretion, accompanied by itching, pain and other symptoms. It is recommended that people with related symptoms should go to the otolaryngology department of the hospital, and follow the doctor’s instructions for targeted treatment.