Patients with left-sided abdominal feeling like a blockage may be caused by functional dyspepsia, acute gastroenteritis, intestinal obstruction and other causes. 1. Functional dyspepsia: Functional dyspepsia is a common functional gastrointestinal disease, caused by gastric and duodenal dysfunction of postprandial fullness, pain in the middle and upper abdomen, nausea and other symptoms, intake of food in the body is not digested, which is piled up in the stomach may cause the patient’s left side of the abdominal blockage and bloating. 2. Acute gastroenteritis: acute gastroenteritis is a kind of acute inflammation of gastrointestinal mucosa, mostly caused by viral or bacterial infections, its main manifestation is abdominal distension, nausea, abdominal pain and other symptoms, when the patient gastroenteritis acute attack may cause the left side of the abdominal congestion and bloating. 3. Intestinal obstruction: Intestinal obstruction is caused by intestinal foreign body, intussusception, intestinal torsion, neurological inhibition and other factors that lead to intestinal contents through the obstacle, when the patient’s body food residues in the intestinal mid-section of the long term obstruction, may cause the left side of the abdominal blockage feeling and so on. It is recommended that the patient should consult a doctor in time for examination, and follow the doctor’s instructions after a clear diagnosis.