"Hearing voices" is known as an auditory hallucination. The Mental Health Foundation tells us that it may or may not be associated with a mental health problem.
It's the most common type of hallucination in people with disorders such as schizophrenia.
There's a stigma that follows such hallucinations. If you speak openly about hearing voices, you're likely to be labeled, medicated, even hospitalized.
But the Hearing Voices Network thinks it has another way to help people understand and learn to live with those voices.