Why was the phantoms face so ugly in phantom of opera?

In Gaston Leroux's novel The Phantom of the Opera, the Phantom is described as having a deformed face, with a large, bulbous forehead, a sunken nose, and a lipless mouth. Leroux's description is deliberately vague, leaving the reader to imagine the full horror of the Phantom's appearance.

In adaptations of the novel, the Phantom's face is often portrayed as being disfigured by some kind of accident, such as a fire. This is not based on anything in Leroux's novel, but it does provide a visual explanation for the Phantom's deformity.

The Phantom's ugly face is a symbol of his inner ugliness. He is a tortured and tormented soul, who has been rejected by society. His deformity reflects his pain and suffering.

The Phantom's face is also a reminder of the dangers of vanity. The Phantom was once a handsome man, but he became vain and arrogant. This led to his downfall, and he was ultimately disfigured.