First things first: if your thumb joint is swollen, hot, and inflamed you should seek medical care immediately, as this could be a sign of a severe.
The “cracking” of knuckle cracking seems to be produced by increasing the space between finger joints. This causes gas bubbles in the joint.
Cracking your knuckles may sound like it's doing damage to your joints, it's possible to pull your finger out of the joint or injure the ligaments.
Cracking finger joints makes a distinct cracking or popping sound. Menu. 0:00. Cracking joints is manipulating one's joints to produce a distinct cracking or popping sound.
Finger popping, snapping, and clicking are common symptoms of finger can make their fingers pop, often called cracking their knuckles.