A doctor will look at the lump, check for warmth and tenderness and make sure it is a cyst rather than something that needs a different kind of care.
If it is ready, the area is numbed, the cyst is opened and drained, and the lining is removed with fine instruments so the same spot does not swell up again.
The small wound is cleaned and dressed, and it usually heals within a week or two with only a faint mark left behind.
Keeping straps clean, changing sweaty clothing soon after exercise and not picking at bumps on the shoulder all help prevent new cysts.
Keep a steady hand and let a professional deal with it. The videos below show shoulder cysts being treated by professionals.
