Thank you for the query.
It is very hard to answer your question as you missed very important data like what kind of surgery was performed. Biopsy is not a technique for scar removal but for diagnosis.
However pain which appears 6 months after surgery should not be caused by surgery (as long as it was not an abdominal surgery
- such surgery can always result with intra-abdominal adhesions
and intestines partial obstruction). Left side abdominal pain can be caused by left urinary tract infection
or stones, diverticulitis
, ovarian infection
, ectopic pregnancy and many more.
If your wife is suffering also from burning when urinating or frequent urinating than urinary tract infection can be the reason. If you wife has severe constipations diverticulitis can cause such symptoms.
It is advisable for your wife to have abdominal ultrasound and fool blood work, pregnancy tests and urine tests.
Hope this will help.