I had a umbellical hernia repair 4 yrs ago.lately it has been sore.i lost 26 lbs since the repair. could the weightloss cause problems with the repair?

Good for you: First of all, congratulations on your weight loss. Not an easy feat. Technically, weight loss should reduce the strain on an umbilical hernia repair site. If you have been more active or exercised more, that could cause discomfort at the hernia site. Could check with a doctor for examination to be sure a hernia recurrence is not an issue.