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Skin layers and needles

Skin layers and needles


A subcutaneous injection is administered under the skin.

Review Date 8/22/2016

Updated by: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.