Autoeroticism is the practice of fulfilling one's own sexual needs without a partner. The most common form of autoeroticism is masturbation. Many people also use dildos, vibrators, anal balls, sybian machines, and other sex toys alone.

Most autoerotic practices are relatively or entirely safe.

One example of a dangerous practice is autoerotic asphyxiation. It often results in death, particularly when done alone.

Self-bondage should also be avoided, as it can have unforseen dangerous consequences in the event of any kind of emergency.