BIOLOGY | HEALTH | MEDICAL on Instagram: "Cracking knuckles is generally not harmful but can cause temporary hand swelling and reduced grip strength. While it doesn't cause arthritis, habitual cracking may lead to functional hand impairment due to repeated ligament stretching. In rare instances, forceful or improper cracking can cause ligament sprains, tendon injuries, or even dislocations. If knuckle cracking is painful, causes swelling, or your fingers appear crooked, it's best to see a doctor