Symptom 7: Change in Hearing: An Overlooked Indicator of CSFL
Hearing changes are another symptom linked to a cerebrospinal fluid leak. This change can range from muffled hearing to an outright decrease in the ability to hear. It’s not just about the volume but also about the clarity of sounds.
The link between a CSF leak and hearing changes lies in the balance of fluid pressures. Cerebrospinal fluid bathes the brain and spinal cord, helping maintain a steady pressure within the skull. When a leak happens, this pressure decreases, which can impact the inner ear’s function – a critical component of the hearing mechanism.
It might start with a feeling of fullness or pressure in the ears, almost like when you’re ascending in an airplane. This might progress to a muffled sensation, where sounds seem far away or as if you’re underwater.
There might also be an actual decrease in hearing ability. People might find themselves straining to hear or asking others to repeat themselves. This can be especially noticeable in crowded or noisy environments. (7)
