4 doctors weighed in:
What is the incidence of twin births?
4 doctors weighed in

Dr. Diane Minich
Family Medicine
1 doctor agrees
In brief: See below
Monozygotic twin births occur all over the world at a constant rate of 3.
5 per 1000 births. Dizygotic twin births range from 6.7/1000 births in japan, to a high of 40/1000 births in nigeria. The two most important factors that influence dizygotic twinning are maternal age at conception, and the use of assisted reproductive technology. Due to the increasing tendency of women to delay pregnancy.

In brief: See below
Monozygotic twin births occur all over the world at a constant rate of 3.
5 per 1000 births. Dizygotic twin births range from 6.7/1000 births in japan, to a high of 40/1000 births in nigeria. The two most important factors that influence dizygotic twinning are maternal age at conception, and the use of assisted reproductive technology. Due to the increasing tendency of women to delay pregnancy.
Dr. Diane Minich
Dr. Diane Minich
Thank
Dr. Sheila Goodman
Obstetrics & Gynecology
1 doctor agrees
In brief: 1.4 %
The incidence of twins in the US is 1 in 70.
This is partially related to fertility treatments and partly due to increased incidence of pregnancy at older ages. Certain ethnic groups, Africans and African Americans have a higher incidence.

In brief: 1.4 %
The incidence of twins in the US is 1 in 70.
This is partially related to fertility treatments and partly due to increased incidence of pregnancy at older ages. Certain ethnic groups, Africans and African Americans have a higher incidence.
Dr. Sheila Goodman
Dr. Sheila Goodman
Thank
Get help from a real doctor now
Dr. Vicken Poochikian
Board Certified,
38 years in practice
2M people helped
Continue
108,000 doctors available
Read more answers from doctors