Vestibular neuritis is an inner ear condition that causes sudden dizziness and balance problems. It occurs when the vestibular nerve, which helps control balance, becomes inflamed, often due to a viral infection. Symptoms typically include vertigo, nausea, and difficulty maintaining balance, but hearing is usually unaffected. The condition can be quite distressing, but it is generally not life-threatening. Most people recover within a few weeks, although some may experience lingering balance issues. Treatment often focuses on managing symptoms and may include medications or vestibular rehabilitation therapy to help improve balance and reduce dizziness.