When you swim, surface tension can trap water in the ear canal. This creates a hydraulic seal against the eardrum. Because sound travels slower through water than air, the trapped liquid acts as a dampener, reducing your ability to hear high-frequency sounds. This usually resolves within a few hours.
Leo gripped the paper on the exam table. The doctor leaned in. He felt a feather-light touch deep in his ear, then a sudden, microscopic pop —like breaking the seal on a jar of pickles. muffled hearing after swimming patched
While most cases resolve quickly, some situations require professional medical attention. You should see a doctor if [9†L36-L37][9†L40-L42]: When you swim, surface tension can trap water