Conjoined Twins: Risk Factors, Causes & Prevalence

Conjoined twins occur due to incomplete separation of the zygote during fetal development. While anyone can have conjoined twins, certain factors increase the likelihood:

- Race: Conjoined twins are more prevalent among certain ethnic groups, specifically in West Africa, South Asia, and Southeast Asia.

- Family History: There seems to be a genetic component involved, as conjoined twins are more common in families with a history of the condition.

- Maternal Age: Advanced maternal age has been associated with a slightly increased risk of conjoined twins.

- In Vitro Fertilization (IVF): IVF has a small but increased association with conjoined twins, likely due to the hormonal manipulation involved.