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What are the most common causes of a cracked knuckle?
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The most common causes of a cracked knuckle include overuse, trauma, arthritis, and genetics. Overuse can cause a crack in your knuckle due to repetitive stress or excessive pressure from certain activities such as playing sports or using tools. Trauma can cause a crack if you hit it against something hard enough, like another person or an object. Arthritis can also cause a crack in your knuckle due to inflammation and swelling. Finally, genetic factors may play a role in the formation of a cracked knuckle.