Mae cwyr clustiau (cerumen) yn gŵyn iechyd gyffredin a phroblemus. Mae’n arbennig o broblemus i bobl sydd eisoes â nam ar eu clyw gan ei fod yn dwysáu eu hanawsterau cyfathrebu. Mae cwyr clustiau trafferthus yn gyflwr iechyd cymharol hawdd i fynd i'r afael ag ef wrth i weithwyr proffesiynol hyfforddedig ei dynnu o’r glust.
Ear wax (cerumen) is a common and significant health complaint, specifically significant for people with pre-existing hearing loss as it compounds their communication difficulties.  Unresolved and troublesome ear wax is a relatively easy health condition to address through removal by trained professionals.