Several factors can increase the likelihood of having twins:
1. Maternal Age: Women over the age of 30, especially those between 35-40 years old, are more likely to have twins.
2. Family History: A history of twins on the maternal side increases the chances of having twins.
3. Fertility Treatments: Procedures such as in vitro fertilization (IVF) and ovulation-stimulating medications can increase the likelihood of multiple births.
4. Ethnicity: Certain ethnic groups, such as African descent, have higher rates of twin births.
