Does Cracking Knuckles cause Arthritis ?

Dr. Saurin Shah MS
perm_contact_calendar 2 months ago
Public
visibility 319 Views
thumb_up 38 Likes
 
cracking knuckles
arthritis
pop crack
chronic knuckle cracking

The truth — and the myth — behind the cracking knuckles debate

Cracking your knuckles may aggravate the people around you, but it probably won't raise your risk for arthritis. That's the conclusion of several studies that compared rates of hand arthritis among habitual knuckle-crackers and people who didn't crack their knuckles.

The "pop" of a cracked knuckle is caused by bubbles bursting in the synovial fluid — the fluid that helps lubricate joints. The bubbles pop when you pull the bones apart, either by stretching the fingers or bending them backward, creating negative pressure. One study's authors compared the sudden, vibratory energy produced during knuckle cracking to "the forces responsible for the destruction of hydraulic blades and ship propellers."

Even if knuckle cracking doesn't cause arthritis, there's still good reason to let go of the habit. Chronic knuckle-cracking may lead to reduced grip strength. And there are at least two published reports of injuries suffered while people were trying to crack their knuckles.