A lump on the foot or ankle is easy to notice and hard to ignore. Some lumps are harmless, but it is still worth knowing whether the bump is coming from a joint, tendon, cyst, pressure area, bone prominence, or something else.
Could it be a ganglion cyst?
Ganglion cysts are fluid-filled lumps that can form near joints or tendons. They are common in the wrist, but they can also appear around the foot or ankle. A ganglion cyst may feel round or firm, change size, and become painful if it presses on a nerve or rubs inside a shoe.
- A round or oval bump near a joint or tendon
- A lump that changes size over time
- Pain, tingling, numbness, or shoe irritation
- A bump that limits comfortable walking or activity
Why guessing is not ideal
Not every foot lump is a ganglion cyst. Some bumps come from arthritis, tendon irritation, trauma, pressure, skin lesions, or bone changes. The location, firmness, tenderness, and movement of the lump help narrow down what is actually going on.
What evaluation may involve
Dr. Boehm examines the lump and the surrounding foot or ankle mechanics. Depending on the presentation, imaging may be useful to understand whether the lump is fluid-filled, related to a joint, or connected to another structural problem.
When to get it checked
A foot lump should be evaluated if it is painful, growing, changing, causing numbness or tingling, rubbing in shoes, limiting motion, or creating uncertainty. A clear diagnosis is what makes the treatment plan reasonable.
