Often, compression of the celiac artery doesn't cause any symptoms. However, those with median arcuate ligament syndrome (MALS) can have long-term (chronic) stomach pain. The symptoms may be due to a lack of blood flow through the celiac artery or compression on nerves in the area. Symptoms of MALS include: MALS  Pain in the upper middle stomach area, which may go away when leaning forward Stomach pain after eating, exercising or changing body position Bloating Diarrhea Fear of eating food due to pain, leading to significant weight loss — usually greater than 20 pounds (9.1 kilograms) Nausea and vomiting 
often  compression celiac artery doesn't cause symptoms  however  median arcuate ligament syndrome (mals) can long-term (chronic) stomach pain  symptoms may due lack blood flow celiac artery compression nerves area  symptoms mals include: mals  pain upper middle stomach area  may away leaning forward stomach pain eating  exercising changing body position bloating diarrhea fear eating food due pain  leading significant weight loss — greater 20 pounds (9 1 kilograms) nausea vomiting 
median arcuate ligament syndrome mals