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Fetus at 12 weeks

Fetus (12 weeks old)

Overview

A fetus at 12 weeks can make a fist and suck its thumb.

Review Date 8/23/2023

Updated by: LaQuita Martinez, MD, Department of Obstetrics and Gynecology, Emory Johns Creek Hospital, Alpharetta, GA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.