Ganglia are cystic swellings under the skin, generally in the wrist or the upper surface of the foot. A ganglion can develop on the top of the foot, on the front of the wrist, or in the fingers.
Usually rubbery to the touch, a ganglion may vary in size. Ganglia are often no bigger than peas. They may be soft or quite hard, and they are usually either painless or only somewhat bothersome.
A ganglion develops when a jelly-like substance accumulates in one of two places - a joint capsule or a tendon...
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