Tummy Tuck 6 wks ago, last 2 wks I've noticed dark red stretch marks appearing. hy do I have these, and will they ever go away?

I have never seen a stretch mark caused by an abdominoplasty.  Many are removed when they are below the navel and some might be moved somewhat, but never created (in my experience).  There is no non-surgical treatment for stretch marks so don't waste your money.

It is very unusual for patients to develop stretch marks after a tummy tuck. Most often stretch marks on the abdomen after a tummy tuck are from prior to surgery, but perhaps became more noticeable once the skin was stretched and tightened. Only stretch marks below the belly button can be removed with a tummy tuck in the area where the excess skin is removed.