Sentence examples for a lump from inspiring English sources

The phrase "a lump" is correct and usable in written English.
It can be used to refer to a small, rounded mass or swelling, often in a physical context, such as describing a lump on the body or a lump of material.
Example: "After the fall, she noticed a painful lump on her arm that needed to be examined by a doctor."
Alternatives: "a bump" or "a mass".