A lesion is any damage or abnormal change in the tissue of an organism, usually caused by injury or diseases. The term lesion is derived from the Latin laesio, meaning "injury". [1] Lesions may occur in …

1 day ago · Learn the medical definition of a lesion, how experts classify these abnormal tissue changes (primary/secondary), and their causes, whether internal or external.

Sep 6, 2025 · The term "lesion" is used to describe any abnormal skin tissue, from birthmarks to tumors. Here's what you should know about the different types.

The meaning of LESION is injury, harm. How to use lesion in a sentence.

An area of abnormal or damaged tissue caused by injury, infection, or disease. A lesion can occur anywhere in or on the body, such as the skin, blood vessels, brain, and other organs.

Lesion is a broad term, including wounds, sores, ulcers, tumors, cataracts, and any other tissue damage. They range from the skin sores associated with eczema to the changes in lung tissue that …

Lesions may be classified as anatomic (evident to the unaided senses), histologic (evident only under a microscope), or biochemical (evident only by chemical analysis).

LESION meaning: 1. an injury to a person's body or to an organ inside their body: 2. an injury to a person's body…. Learn more.

Dec 12, 2025 · A lesion is an abnormal tissue area that may appear as a blister, cyst, or tumor. Learn what each type means and when to seek medical help.

Lesion is a word pathologists use to describe abnormal cells or tissues. Types of lesions include tumours, traumatic injuries, and infections.