Why Does My Ear Feel Blocked A blocked ear is a common problem that can cause ear fullness, ear pressure, and muffled hearing. It is often caused by earwax buildup (Cerumen Impaction), Eustachian Tube Dysfunction (ETD), allergies, sinus congestion, or a middle ear infection. Medically reviewed by Dr. Gouda Ramesh, MBBS, MS-ENT — ENT Specialist […]