I had part of my colon removed six weeks ago my drain is white in color and i take a shot ever eight hours (for four weeks now)but it will not stop.

Go back to doctor: You need to be examined by the doctors who treated you and performed the surgery. Do this now, do not delay further. Best wishes.

See your surgeon: A drain left in place for this length of time following colectomy is unusual, unless there is a leak at the connection, infection, or some other problem not stated here. What kind of a shot are you taking? Antibiotics? Your situation is complex enough to ask your surgeon all of these questions.