TINNITUS (CHỨNG Ù TAI)

Tinnitus is when you experience (trải nghiệm, trải qua) ringing or other noises (tiếng ồn) in one or both of your ears. The noise you hear when you have tinnitus isn't caused (được gây ra) by an external sound (âm thanh bên ngoài), and other people usually can't hear it. Tinnitus is a common problem. It affects (ảnh hưởng) about 15% to 20% of people, and is especially common in older adults. (đặc biệt phổ biến với người lớn tuổi)

Tinnitus is usually caused by an underlying condition (những bệnh nền), such as age-related hearing loss (mất thính giác liên quan đến tuổi tác) , an ear injury (chấn thương tai) or a problem with the circulatory system (hệ tuần hoàn). For many people, tinnitus improves with treatment (chữa trị) of the underlying cause (nguyên nhân gốc) or with other treatments that reduce or mask the noise, making tinnitus less noticeable. (làm cho chứng ù tai bớt nghiêm trọng hơn)

Symptoms (dấu hiệu)

Tinnitus is most often described as a ringing in the ears, even though no external sound is present. However, tinnitus can also cause other types of phantom noises in your ears, including:

· Buzzing

· Roaring

· Clicking

· Hissing

· Humming

Most people who have tinnitus have subjective tinnitus, or tinnitus that only you can hear. The noises of tinnitus may vary in pitch from a low roar to a high squeal, and you may hear it in one or both ears. In some cases, the sound can be so loud it interferes with your ability to concentrate or hear external sounds. Tinnitus may be present all the time, or it may come and go.