Why Do Hamstrings Crack?

When the end of the thighbone maneuvers over that tear, popping and cracking can occur. The hamstring attaches to the ischial tuberosity, also known as the sitting bone. When the hamstring moves across these bones, you could experience a snapping sensation in your backside.

How do I stop my hamstring from popping?

On the ground, try putting one leg up at a little more than a 90-degree angle and bending your torso forward, so it's next to (or even below!) the line of your thigh, which should be parallel to the ground. Put that other leg harmlessly behind you, and hold the position for 30 seconds before releasing.

Why you shouldn't stretch your hamstrings?

It seems that people love to stretch their hamstrings, often to the point of overstretching, again, allowing the pelvis to tilt forward. When this happens, demand on your hamstrings increases, making them feel sore and tight, and your risk of injury increases.