Tinnitus is a symptom characterized by hearing noises such as ringing, buzzing, or roaring in the ears when no external sound is present. It affects around 1 in 5 people and can be caused by age-related hearing loss, ear injury, circulatory system disorders, exposure to loud noises, earwax buildup, changes in the ear bones, and certain health conditions. Treatment focuses on identifying and addressing any underlying causes that may be associated with tinnitus symptoms, and may include procedures like earwax removal or medication changes. Common risk factors include a history of loud noise exposure without hearing protection, being over age 65, having age-related hearing loss, being male, or having PTSD.