Earwax is a natural yellowish, waxy substance that is secreted in the ear canal. Earwax protects the ears and ear canals from external influences such as dust, bacteria, insects and others. It thus acts as a barrier to prevent foreign bodies from reaching the eardrum.  Earwax is produced by ceruminous glands in the outer third of the cartilaginous portion of the ear canal. The skin inside the ear canal is constantly renewing itself and migrates from the depths of the ear canal outwards, carrying the wax with it. The earwax captures and removes epidermal waste (dirt and dead skin) as it passes and carries it to the outside. The action of chewing and yawning encourages the movement of earwax outwards along the ear canal. When earwax accumulates in the ear canal it can cause blockages and hearing problems.