How far can the anus be stretched?

The anus is a muscular opening at the end of the digestive tract, designed to stretch and contract to allow for the passage of feces. Under normal circumstances, the anus can stretch to accommodate the passage of stool without causing damage. However, forcibly stretching the anus beyond its natural capacity can lead to tears, known as anal fissures, and other complications. It is important to practice safe and gentle methods when it comes to anal play or medical procedures involving the anus to prevent injury.