Short answer · Medically reviewed summary · Last updated: 2026-05-08
Sudden Sensorineural Hearing Loss (SSHL) is defined as a rapid loss of hearing, often occurring in one ear, over a period of less than 72 hours. If you experience a sudden "muffled" sensation or loss of sound, it is considered a medical emergency requiring urgent evaluation by an otolaryngologist (ENT) within 24 to 48 hours to maximize the chance of recovery. What are the early signs of Sudden Hearing Loss? The hallmark of Sudden Hearing Loss is a rapid decrease in auditory sensitivity.
Sudden Sensorineural Hearing Loss (SSHL) is defined as a rapid loss of hearing, often occurring in one ear, over a period of less than 72 hours. If you experience a sudden "muffled" sensation or loss of sound, it is considered a medical emergency requiring urgent evaluation by an otolaryngologist (ENT) within 24 to 48 hours to maximize the chance of recovery.
The hallmark of Sudden Hearing Loss is a rapid decrease in auditory sensitivity. Many individuals with Sudden Hearing Loss report a sensation of "fullness" or pressure in the ear, similar to the feeling experienced during an airplane descent. While some may notice the loss immediately upon waking, others describe a sudden "pop" followed by silence. Approximately 30% to 50% of people with Sudden Hearing Loss also experience tinnitus (ringing in the ear) or vertigo (dizziness).
If you suspect you are experiencing Sudden Hearing Loss, consider these quick indicators:
You should treat Sudden Hearing Loss as an urgent medical priority. Do not wait to see if it "goes away on its own." When speaking to your doctor, clearly state: "I have experienced a sudden, unexplained loss of hearing in one ear within the last [number] hours." Ask specifically for a formal pure-tone audiometry test. If your primary physician suggests "waiting and seeing," advocate for an immediate referral to an ENT, as the clinical window for effective treatment, such as corticosteroids, is time-sensitive.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.