Answer to your Health Question


I have a little hard ball under the skin of my leg at the front. It moves when I touch it and feels hard to the touch.

What could it be? My other leg does not have one.




Dear Juan,

It could be milia. Milia are keratin-filled cysts, or simply little globs of protein under the skin. There are generally two types of milia, primary and secondary.

Primary milia may result from oil glands that have not fully or properly developed. Secondary milia result from trauma to the skin.

Milia are common non-cancerous (benign) skin findings in people of all ages.

The formation of milia is often due to sun-induced changes as the skin ages.

Milia occur when dead skin becomes trapped in small pockets at the surface of the skin.

Secondary milia often develop after injury (trauma) or blistering.

Secondary milia are also usually caused by problems with sweat ducts or skin trauma caused by allergies.

The key to getting rid of milia is realizing that they have no escape route, those little bumps are trapped under the skin. So, to get them out, you’ll need to have a professional like a dermatologist or aesthetician extract them.

You can extract the milia yourself, but this involves risks.

It could be also Erythema nodosum.

Erythema nodosum is an allergic skin condition usually on the legs.

The list of treatments mentioned in various sources for Erythema nodosum includes the following list.
Bed rest
Pain relief
Pain medications
Oral corticosteroids
Locally injected corticosteroids


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