What is constant humming is a sign of what?

Constant humming is a sign of tinnitus. Tinnitus is a condition where individuals experience a continuous ringing, buzzing, or humming in their ears without an external sound source. It can be caused by numerous factors, including exposure to loud noises, ear infections, age-related hearing loss, and even certain medications. Tinnitus can be chronic or temporary and can significantly impact a person's daily life. Treatment options include management strategies, hearing aids, and sound therapy.