Warty gastritis may cause weight loss. There are many causes of verrucous gastritis, the main cause is Helicobacter pylori infection, which occurs more often in young adults and more often in males than females. The clinical manifestations of verrucous gastritis are nausea, vomiting, abdominal pain, bloating and loss of appetite. Verrucous gastritis may cause some complications, such as gastrointestinal bleeding, anemia, weight loss, hypoproteinemia, and in more serious cases, it may lead to gastric cancer, in which the weight loss is due to the long-term lack of appetite and eating too little, which leads to weight loss. If you are diagnosed with verrucous gastritis, it is recommended to go to the hospital as soon as possible and undergo standardized treatment to minimize the adverse effects of the disease.