How rare is a ganglion cyst in the ulnar side of the wrist? can it be removed without a huge scar? it's uncomfortable to use my fingers.

Not rare: Ganglion cysts are most common on the dorsal/ radial side of the wrist but occur readily elsewhere about the wrist ( and other joints).If your cyst is painful see an orthopedic surgeon for treatment options.Scars vary w/ size of cyst and patients' response to surgical incisions.Best of luck!

Not rare: Flexer part of wrist , is less common than dorsal ( extensor ) yes could be removed with minimum scar speak to your family doctor to ever you to a surgeon.