All About Twins, Triplets, and More
Medically Reviewed by Traci C. Johnson, MD on February 20, 2023
Multiple Births
1/15
Identical Multiples
2/15
Fraternal Multiples
3/15
Same Mom, Different Dad
4/15
Strong Connections
5/15
How Are Multiples Born?
6/15
Reason: Fertility Drugs
7/15
Reason: In Vitro Fertilization
8/15
Reason: Age and Race of Mother
9/15
Reason: Height of Mother
10/15
Reason: Milk
11/15
Other Reasons for Multiples
12/15
Complication: Earlier Births
13/15
Complication: Preeclampsia
14/15
Visits to the Doctor
15/15
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Department of Health & Human Services, Victoria, Australia: “Twins -- identical and fraternal.”
March of Dimes: “Being pregnant with twins, triplets and other multiples.”
Mayo Clinic: “Twin pregnancy: What multiples mean for mom, “Premature Birth,” “Preeclampsia.”
National Institutes of Health: “Superfecundation in etiology of twin pregnancy.”
Nature: “A diet of milk could bring twins.”
PLOS: “Wired to Be Social: The Ontogeny of Human Interaction.”
Science Daily: “Taller Women Are More Likely To Have Twins, Obstetrician's Study Confirms.”
February 20, 2023
Medically Reviewed by: Traci C. Johnson, MD
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