What should you know about movable cyst under skin?

An epidermoid cyst is a closed sac beneath the skin that may contain keratin. It can feel smooth, round, and mobile under the fingers, sometimes with a small central opening. Some remain quiet; others become tender, red, swollen, or drain thick material after inflammation. A cyst is one possible explanation for skin lumps, but a lipoma, enlarged structure, abscess, or another growth can feel similar. Movement alone cannot establish the diagnosis.

Do not squeeze, puncture, or repeatedly massage the lump, because this can worsen inflammation and introduce infection. Keep the skin clean and note its size, tenderness, drainage, and changes. If it is inflamed, a clinician may consider a Steroid Injection Into The Skin in selected cases or Abscess Drainage when infection has collected. Cyst Removal may be discussed for a recurrent, bothersome, or persistent cyst; removing the cyst wall helps address the source.

Arrange an assessment for a new, enlarging, firm, fixed, painful, or repeatedly recurring lump. Seek prompt care for rapidly increasing redness, warmth, swelling, pus, fever, red streaking, or severe pain. Urgent evaluation is needed if swelling affects the eye, mouth opening, swallowing, or breathing. Do not wait for drainage to diagnose a changing lump.

Does this feel like a cyst, abscess, lipoma, or another lump? Is imaging or sampling needed? If it is inflamed, should it be drained or treated first? Would Cyst Removal reduce recurrence, and what scar or wound care should I expect?