Straightforward Information About Tinnitus
Not all tinnitus is equally bothersome. Some people are barely aware of their tinnitus most of the time, while others find it profoundly distressing. Measuring severity helps clinicians understand the impact on your life and select appropriate management strategies.
Tinnitus severity is not just about volume. Two people can have tinnitus at the same perceived loudness and have vastly different experiences. What determines severity is largely the reaction to the sound — how much distress, sleep disruption, difficulty concentrating, and emotional impact it causes. This is why tinnitus severity is measured using questionnaires about daily life impact rather than just sound measurements.
The THI is one of the most widely used tinnitus questionnaires. It consists of 25 questions about the functional, emotional, and catastrophic impact of tinnitus on your life. Each question is answered "yes" (4 points), "sometimes" (2 points), or "no" (0 points), for a total possible score of 100.
| THI Score | Severity Grade | Description |
|---|---|---|
| 0–16 | Grade 1 (Slight) | Tinnitus is noticed only in quiet environments |
| 18–36 | Grade 2 (Mild) | Easily masked; occasionally interferes with sleep or quiet activities |
| 38–56 | Grade 3 (Moderate) | Noticed even with background noise; can interfere with sleep and concentration |
| 58–76 | Grade 4 (Severe) | Almost always noticed; significant impact on sleep, concentration, and mood |
| 78–100 | Grade 5 (Catastrophic) | Constant awareness; severely disrupts daily functioning |
The TFI is a newer questionnaire that is increasingly used in clinical and research settings. It measures eight domains: intrusiveness, sense of control, cognitive interference, sleep disturbance, auditory difficulties, relaxation interference, quality of life, and emotional distress. Scores range from 0 to 100, with higher scores indicating greater impact. The TFI is also designed to be sensitive to changes over time, making it useful for tracking treatment progress.
There is no strict cutoff, but in general, mild tinnitus may benefit from education and self-management strategies, while moderate to severe tinnitus often warrants structured intervention such as sound therapy, cognitive behavioral therapy, or tinnitus retraining therapy. Severe or catastrophic scores may also indicate the need for evaluation for co-occurring anxiety or depression.