Dysplasia vs. Hyperplasia — What's the Difference?

Dysplasia is any of various types of abnormal growth or development of cells (microscopic scale) and/or organs (macroscopic scale), and/or the abnormal histology or anatomical structure presumably resulting from such growth. Dysplasias on a mainly microscopic scale include epithelial dysplasia and fibrous dysplasia of bone.

Hyperplasia (from ancient Greek ὑπέρ huper 'over' + πλάσις plasis 'formation'), or hypergenesis, is an increase in the amount of organic tissue that results from cell proliferation. It may lead to the gross enlargement of an organ, and the term is sometimes confused with benign neoplasia or benign tumor.Hyperplasia is a common preneoplastic response to stimulus.

Abnormal development or growth of tissues, organs, or cells.

An abnormal increase in the number of cells in a tissue or organ, with consequent enlargement of the part or organ.

(pathology) Abnormal development of cells or tissue, often a precancerous stage of growth.

(medicine) An increase in the size of a tissue or organ due to increased number of cells.

Abnormal development (of organs or cells) or an abnormal structure resulting from such growth

An increase in, or excessive growth of, the normal elements of any part.

Abnormal increase in number of cells