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 clywed. Gall hefyd achosi nifer o broblemau eraill gan gynnwys poen annifyr, pigyn clust a thinitws.
Ear wax (cerumen) is a common and significant health problem which can especially impact people with pre-existing hearing loss as it compounds their loss further. It can also cause a number of other issues including discomfort, earache and tinnitus.