Placental findings in specific newborn / fetal or maternal conditions

Topic Completed: 1 November 2011

Revised: 19 February 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Smoking[title] placenta[title]

Mandolin S. Ziadie, M.D.
Page views in 2018: 108
Page views in 2019 to date: 82
Cite this page: Ziadie MS. Smoking. website. Accessed September 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
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