Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Microdeletion
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Microdeletion: Loss of a tiny piece that may be too small to be seen readily through a microscope'from a chromosome. Microdeletions can be detected via high-resolution chromosome banding, molecular chromosome analysis (with FISH), or DNA analysis. Disorders caused by microdeletions include Angelman, DiGeorge, Prader-Willi, and Williams syndromes.
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