Throughout my life I have always heard people saying this myth, and I always remembered researching it and never really being able to find a legitimate answer. Although this claim sounds like it could be true, it is false. With researching this claim Arthritis is not caused by just cracking your finger nails.
When researching this claim, one of the first reliable sources, Mayo Clinic, showed that it was incorrect. In the article, surgeon Dr. Sanj Kakar explained that half of the population cracks their fingers some frequently, others rarely. He describes the sound as a result of tribonucleation, where air bubbles form and pop in the synovial fluid of finger joints. Research indicates that repeated knuckle cracking may cause thickened cartilage, it also can have an effect on grip strength, or function. According to Dr. Kakar, “If they find it's annoying, then stop. But, otherwise, if it’s causing no pain to them, really, I don’t think they’re doing any harm. I occasionally do it myself, and I’m a hand surgeon.”(Mayo Clinic). Similarly, Harvard Health supports the claim that there is no correlation between knuckle cracking and arthritis, stating that there is no actual harm to the joints when cracking fingers.. They explain that “...the bubbles pop when you pull the bones apart, either by stretching the fingers or bending them backward, creating negative pressure.”(Harvard Health). Lastly, another article by the Johns Hopkins Arthritis Center also reinforces that habitual knuckle cracking does not increase the likelihood of developing arthritis. They also talk about how there is not really a relation between knuckle cracking and arthritis but in a study they found, “...after many years of cracking habitual knuckle crackers may have reduced grip strength compared with people not cracking their knuckles.” (John Hopkins Arthritis Center).
To bring this claim to conclusion, I have found three reliable sources that show that this claim is not accurate. Although this is a common myth that many people believe, it is easy to say with this research that there is no real correlation between cracking in the fingers and arthritis. All of the articles came to the result that cracking fingers can cause joint pain and finger mobility weakness.
Sources-
https://www.hopkinsarthritis.org/arthritis-news/knuckle-cracking-q-a-from/
https://www.health.harvard.edu/pain/does-cracking-knuckles-cause-arthritis
https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-minute-a-hand-surgeons-advice-about-knuckle-cracking/