What does "First metatarsal joint capsule" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
The first metatarsal joint capsule is a part of the foot. It's a kind of protective covering around the joint where the big toe connects to the foot. This capsule is filled with a lubricating fluid that helps the joint move smoothly. If this capsule gets injured or inflamed, it can cause pain and difficulty moving the big toe.
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