Placental findings in specific newborn / fetal or maternal conditions

Author: Mandolin Ziadie, M.D. (see Authors page)

Revised: 16 October 2017, last major update November 2011

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Smoking[title] placenta[title]

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Cite this page: Ziadie, M. Smoking. website. Accessed January 22nd, 2019.
Definition / general
  • Maternal smoking is associated with a single umbilical artery and increased cord vessel branching (BMJ 1991;302:569)
  • Placental weights are often greater than in nonsmokers
Microscopic (histologic) description
  • May show increased calcification, Tenney-Parker change, villous fibrosis and thickened trophoblastic basement membranes