A man who has no friends may be socially anxious, lacking social skills, or naturally introverted, says psychologist Irene Levine in the Psychology Today column Why Would Someone Have No Friends? A man with social anxiety fears being embarrassed in front of others or that he will be negatively judged.

Can you live without friends?

Having no friends doesnt have to mean that you feel lonely. Theres nothing inherently dangerous or unhealthy about being alone. Its when isolation causes loneliness that your health can suffer. Its perfectly possible to have a full and exciting life when youre primarily alone.