Umbilical hernia -if it having small defect like less that 3 cm, it will result in frequent obstruction of intestines.
Very bigger defects, chance of obstruction is less, though it is there anyways. If it is cosmetically disfiguring big swelling, you can go ahead with surgery. If she is having any other significant problems like
diabetes, heart disease, and
kidney problems due to her age, you can decide after seeing the risk of anesthesia.
Next Steps
If she has vomiting, if you are not able to push the hernia inside, then it might be obstruction, then consult surgeon immediately
Health Tips
Diet control and weight maintenance is must to prevent recurrence even after surgery