Gushing Blood from Belly Button? (photo)

Please see your plastic surgeon immediately.  You may have torn something and it is bleeding or old pocket of blood has reached the surface.  In either case it needs urgent attention.

It sounds like some of your blood vessels started bleeding with the forceful cough or you tore some rectus sheath sutures and that caused the bleeding. At any rate you should see your surgeon. You may need an exploration or a drain to get through this problem.

Most likely you had a fluid collection under the skin, a so called seroma, which came out though the belly button after you coughed. I would definitely recommend that you see your plastic surgeon as soon as possible. Other than that you look like you are healing well. Good Luck