Your surgeon should carefully explain the potential risks and benefits of surgery (as well as those that might arise without surgery). However, all surgical operations are associated with at least a small risk of infection, bleeding, unintentional injury to the abdominal organs, hernia recurrence, and various risks of anesthesia.
In terms of future pregnancies, for most women, the abdominal wall stretches out very gradually, allowing the hernia repair site(s) to gradually adjust to the changes in a pregnant woman's body. That being said, pregnancy will put some stress on previous hernia repairs, and may increase the risk of developing a recurrent hernia.
Sincerely,
Robert A. Wascher, MD, FACS
www.doctorwascher.com
Author, "A Cancer Prevention Guide for the Human Race"