I am 1 week post-op from L4-S1 ALIF and posterior rods and screws. I have gained 15 pounds from the day of surgery to 3 days after surgery. I have eaten very litlle since surgery, probably 500 to 1200 calories per day. If anything, I should have lost weight. My left side of my body is so totally swollen and distorted. Called my Surgeon who said to call my general practitioner. My GP put me on a diuretic and when there was no change the next day, doubled the dosage. My foot and ankle and thigh on my left side are like Eddie Murphy in a fat suit in the Nutty Professor. No joke! My stomach looks about 6 months pregnant. Went to see my GP 5 days post op and he checked my calves for pain to determine clotting and then ordered blood work to check whether my kidneys are functioning properly. Results of bloodwork today showed kidneys are functioning fine, red blood count way low because of loss of blood during surgery (2 units transfused) and low iron. So all things considered great news that sounds like everything will be corrected during the healing process. My question is are there others out there with this kind of weight gain and puffiness and how long does it take to get back to normal? I cannot fit into any of my pants other than sweats and it's 95 degrees in Florida. I can't even recognize this body as mine!