Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1976 Apr 24;50(18):697-8.

Excessive Siamese twinning in Southern Africa

M M Nelson, E Bhettay, P Beighton
  • PMID: 1273733

Excessive Siamese twinning in Southern Africa

M M Nelson et al. S Afr Med J. .

Abstract

Twelve sets of conjoined twins have been born in Southern Africa since February 1974. This possibly represents a significant increase in the incidence of Siamese twinning and may be the result of unknown environmental agents. Several of the sets of twins were diagnosed antenatally. In view of the current circumstances a high index of suspicion is probably justified in the presence of maternal hydramnios or fetal malpresentation.

PubMed Disclaimer