I had left side pelvic pain from adnomyosis was treated by hysterectomy. 5 weeks post op pain on left during sonogram. normal? will it go away?

Pain maybe unrelated: You will have to be your own detective and see wether pain resolves.If it doesn't then have a discussion with your gyn.

Fibrosis: Post-operative pain can happen after any abdominal procedures, and usually represents fibrous adhesions that cause pain with stretching. I would discuss this with your surgeon and get a thorough exam to rule out other causes