Cant get back abs-- surgery complications?

Abs: I presume you mean abdominal strength and definition. You dont say what type of sirgery you had but if it was andominal you will lose considerable abdominal strength. This may take 6 months to yr to regain. Make sure its ok with your dr before doing any vigorous core muscle exercises.

Abs after surgery : There are many kinds of surgery and incisions. Most abdominal surgeries now are laparoscopic with small incisions. These rarely affect the abs. Open abdominal surgery with a midline incision is done without injuring muscles--the surgeon cuts the fascia between the rectus abdominis muscles, or abs. This is leathery connective tissue, so muscles aren't harmed. See a sports physical therapist.