When patients have sticky earwax, the causes are as follows: 1. Eczema: The occurrence of this condition is often related to the patient being in a hot and humid environment for a long time, and may also be caused by repeated water ingress into the ear, which is not cleaned up in time. 2. Chronic purulent otitis media: The middle ear cavity is prone to repeated secretion of mucopurulent secretions, which will produce sticky earwax, and at the same time, these inflammatory These inflammatory secretions can also cause repeated stimulation of the skin of the ear canal, further triggering eczema of the skin of the ear canal, which can also easily produce sticky secretions, further leading to repeated itching of the ear area and even further crusting.