What Are my Options for Revising a Pyloric Stenosis Scar? My Skin over Hangs the Scar when I Flex. (photo)

Scar excision and layered skin and tissue closure will dramatically improve these abdominal scars from surgery.

With the limitations associated with viewing the photo via the internet it appears as if your scar should improve with a scar revision procedure.  It is best to see a plastic surgeon for this procedure who has experience with scar revisions.  Most likely this procedure can be performed using only local anesthesia.

You seem to have a scar that is tethered to the muscle. A scar revision with additional release of the muscle and possible interposition of some soft tissue between the skin and underlying muscle will probably help.