Lupoma removed from back. There is a knot running the length of the incision that's causing pain is this normal? (photos)

Yes this is normal. Based on your description, it has been about a week from your lipoma surgery.  It is not at all unusual for your body to have some discomfort from this.  It will improve as the swelling comes down.  This is part of the inflammatory response of healing and suture absorption etc.  As a matter of fact in some patients, it is manifested with itching in the area of the surgery not just pain and some lumpiness from the wound healing process.  Give it time.  If you are really concerned have your surgeon take a look at it.Good luckDr VasishtSouth Shore Plastic SurgeryVoorhees, NJ

Thank you for your question and I am sorry to hear of your pain.  After a lipoma is removed most surgeons will close the skin and underlying fat layers with absorbable sutures.  When placed, these sutures can create ridge like feeling over the incision that can be painful.  As your body heals, the sutures will dissolve and your scar will flatten.  Hang in there and allow more time to pass. Your pain should steadily improve from here. 

Stop massaging the wound. A variable period of weeks to several months will be needed for remodeling of scar tissue and absorption of sutures (subcuticular layer) that will help resolve these symptoms. It looks like it is healing nicely from the pictures.