Fingers can curve due to a variety of reasons, some common ones include:
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Clinodactyly: This is a condition where a finger curves to one side, usually affecting the little finger but can impact other fingers as well. It is often caused by a misshapen middle bone in the finger, known as a "delta phalanx," which may have a curved growth plate or multiple growth plates. As the hand grows, the finger becomes more curved.
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Dupuytren's contracture: This condition causes one or more fingers to bend towards the palm of the hand, making it difficult to straighten them. It's caused by thickening of the tissue beneath the skin in the palm of the hand.
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Rheumatoid arthritis: This autoimmune disease can cause inflammation in the joints, leading to deformities like a "boutonniere deformity" (bent middle finger joint) or a "swan-neck deformity" (bent end of the finger and over-extended middle joint).
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Mallet finger or fracture: An injury to the fingertip can cause it to bend or stay bent, especially if the tendon that straightens the fingertip is damaged.
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Clubbing: This condition is characterized by enlarged fingertips and curved nails. It can be a sign of underlying medical conditions like lung disease, heart disease, or inflammatory bowel disease.
If you're concerned about curved fingers, it's best to consult with a doctor or a hand specialist to determine the underlying cause and discuss treatment options.
