Some people are born with hearing loss, and others acquire it either suddenly or slowly over time.  Hearing loss can be attributed to various factors such as noise exposure, aging, ototoxic medications, head trauma, middle ear disease, inner ear problems, and post surgical complications.  Typical signs that you may need to have your hearing tested include saying "Huh?", asking for repetition, increasing the volume on the TV, difficulty hearing conversation in groups or in noisy settings, being told that you speak loudly, difficulty understanding on the telephone, turning your better ear towards the person speaking, and complaining that others are mumbling.