Ear wax is a natural product made by the skin of our ear canals for protection.
Much like the oil our skin produces, it keeps skin lubricated and healthy. We would be in trouble if none was made. Sometimes that wax builds up and blocks the ear canal. If the canal is blocked completely, a temporary conductive hearing loss develops until the wax is removed. Most of the time, wax never builds up to a degree that causes a hearing loss because it is shed a little at a time out of our ears.