By Dr. Chandra Veer Singh
Consultant ENT, Head & Neck Cancer Surgeon
Wockhardt Hospital, Mira Road, Mumbai
Diabetes is widely known to affect the heart, kidneys, eyes, and nerves. However, one important complication that often goes unnoticed is hearing loss. Recent medical studies have shown that people with Type 2 diabetes have nearly four times higher risk of developing hearing impairment compared to non-diabetics.
Hearing loss in diabetic patients is usually slow, painless, and progressive, which makes early detection difficult. Many patients complain of difficulty understanding speech, especially in noisy surroundings, the need to increase television volume, or persistent ringing in the ears. These symptoms are often ignored or attributed to ageing.
How Diabetes Damages Hearing
The inner ear depends on very fine blood vessels and sensitive nerve cells for normal hearing. Persistently high blood sugar damages these tiny vessels and auditory nerves, leading to reduced oxygen supply to the cochlea. Over time, this causes sensorineural hearing loss, which can become permanent if left untreated. Longer duration of diabetes and poor sugar control further increase this risk.
Importance of Early Detection
Hearing loss significantly affects communication, social interaction, work efficiency, and mental health. In elderly diabetic patients, untreated hearing impairment is linked to social isolation, depression, and even cognitive decline. Despite this, routine hearing tests are still not commonly advised for diabetic patients.
Advanced Treatment Options: Role of Intratympanic PRP
In recent years, intratympanic Platelet-Rich Plasma (PRP) injection has emerged as a promising treatment option for selected patients with diabetic sensorineural hearing loss. PRP is prepared from the patient’s own blood and is rich in growth factors that help in tissue healing and nerve regeneration.
When delivered directly into the middle ear, PRP can improve inner ear microcirculation, reduce inflammation, and support recovery of damaged auditory structures. This treatment is minimally invasive, safe, and performed as a daycare procedure, offering hope to patients who may not respond adequately to conventional medical therapy or hearing aids.
What Patients Should Do
- Maintain strict blood sugar control
- Get periodic hearing evaluations, especially after five years of diabetes
- Seek early medical advice for hearing difficulty, tinnitus, or ear fullness
- Discuss advanced options like PRP therapy with an ENT specialist
A Call for Awareness
Hearing assessment should become a routine part of diabetes care, similar to eye and kidney check-ups. With early diagnosis and newer regenerative treatments such as intratympanic PRP, hearing loss can be better managed and quality of life significantly improved.
Diabetes does not only affect how long we live but also how well we hear and connect with the world.