WLS Complications
 This list was compiled from patients reporting these complications as have been confirmed by the patients doctors,
as related to Weight Loss Surgery.

Dehydration, Chronic Vomiting and Nausea, Stroke, Heart Attack, Arrhythmia, Kidney stones, Kidney Failure, Liver Failure, Anemia, Deficiencies (B-12,potassium, iron, B-1, B-6, etc.), Non absorption of supplements (calcium, minerals, nutrients from food) or medications, Blurred Vision, Muscle and Bone Pain, Loss of Teeth, Bleeding Gums, Rotting Teeth requiring Root Canals or extraction, Hypoglycemia, Headaches, Black outs/Seizures, Lactose Intolerance, Injury to Spleen during surgery, Coma, Paralysis/Blindness after coma, Osteoporosis and/or Metabolic Bone Disease, Burst or leaky Pouch, Lupus, MS and/or other Auto-Immune Disease, Looped or twisted Intestines, Ruptured Esophagus from vomiting, distended esophagus (most patients have this - this can turn into a rupture or hernia), Misfired Stapler during surgery, Ulcers, Pneumonia/Lung Problems, Arthritis, Weakness and Fatigue from Malnutrition, Overall Pain, Food Blocking Stoma Causing Severe Pain, Stoma Needing Repeated stretching (by endoscopy), Neuropathy, Beri Beri, Put on Feeding Tubes/PICC Lines, Fibromyalgia and/or Chronic Fatigue syndrome (CFS), Fistulas, Atrophy of Muscles, Hair Loss, incisional Hernias (even with laparoscopic procedures - Carnie Wilson has had several hernias for example), Blood Clots, Leaks, Peritonitis, Heart Burn/Gerd/Acid Reflux, Bowel Obstructions, Gallstones and Gallbladder Removal, Severe Depression, Anxiety, Loss of Memory and/or "Brain fog", Poor Concentration, Irregular Blood Pressure, Rectal hernia, Opening Of Outer Incision-Needing Packing Until Healed From The Inside Out, Insomnia/Sleep Disorders, Unintentional Anorexia and/or Bulimia, Gas and/or malodorous feces, Silent Stroke, Vertigo, abnormalities in defecation, either going too often or not going often enough and/or fecal impaction and/or fecal incontinence or anal leakage.

Malnutrition of nutrients and micro nutrients (like zinc, selenium etc) is the cause of many of the foregoing problems. Some individuals end up becoming ill to the point of being unable to work,  because of the repercussions of WLS.

The most common longer term repercussion of the gastric bypass is a rebound weight gain of up to 50 percent of the weight lost in the first year and 30 percent of patients (according to the latest statistics of the ASBS) gain back most of the weight.  Although the patient often suffers extreme psychological devastation (when regaining after a surgery which they were told would "keep the weight off forever"), blaming themselves for the problem, the regain is likely the body trying to restore what it feels is a healthy weight and/or metabolic damage from the first year post op where the caloric intake is very low.

Besides physical complications there is financial hardship and families who are devastated when their loved ones have catastrophic repercussions. Insurance has a ceiling as for what it will pay for.  It often does NOT pay for supplements and vitamin B12 shots.  Also it often stops paying for after surgery complications requiring endoscopy or other.  Many people have lost their houses and life savings after having problems with this surgery.

This does not happen to everyone.  Some people live long lives after gastric bypass, their systems somehow reconfiguring to adapt to the many changes to the anatomy of the digestive tract, but many of those who stay healthy or somewhat healthy are those who have regained a significant amount of weight. 

A percentage of gastric bypass patients have problems keeping a normal weight (become very underweight).

Because of the fact that quick weight loss more often than not, causes very loose skin around the abdomen, on the legs, on the arms, patients must decide whether to deal with the loose skin and the accompanying inconvenience, rashes etc, and cosmetic issues, or have several plastic surgeries.


This information while educational, is not meant to replace the advice
of a health care provider.