Eating a little bit of food is particularly propped up, which may be related to indigestion, chronic gastritis, pyloric obstruction and other factors. 1. Indigestion: If daily eating habits are irregular, improper diet, overeating, and inhaling a lot of air during meals, it will lead to gastrointestinal dysfunction, which makes the pressure in the abdomen increase and leads to indigestion, and abdominal pain, abdominal distension, propping up, nausea, and vomiting after eating a little bit of meal. 2. Chronic gastritis: If the daily diet is not regular, eating too fast, eating spicy and stimulating or salty food, etc., it will stimulate the gastric mucosa, leading to chronic damage to the gastric mucosa, causing chronic gastritis, loss of appetite, and a feeling of fullness and pectus after eating a little meal. 3. Pyloric obstruction: the pylorus is located in the lower stomach and duodenum connection, if the pylorus is narrowed, or obstruction, the discharge of food from the stomach will be limited, resulting in a little bit of food especially supportive of the situation. There are many other reasons why you may feel full after eating a small amount of food. If the above situation cannot be relieved effectively, you should go to the hospital for examination and symptomatic treatment in a timely manner.