Tightness below the right rib cage may be caused by liver and gallbladder diseases, muscle strain, intercostal neuritis and other reasons. 1. Liver and gallbladder diseases: such as viral hepatitis, can be accompanied by pain in the liver area, may involve the right side of the ribs, tightness; such as cholecystitis, local inflammatory stimulation will make the patient nausea, acid reflux, and other symptoms, sometimes may affect the ribs, tightness and pulling sensation of the right side of the ribs. 2. Muscle strain: if you do a lot of strenuous abdominal exercise, the abdominal muscles may be strained, which may cause tightness under the right side of the rib cage. 3. Intercostal neuritis: the main symptom is tightness and pulling sensation under the ribs, which may be accompanied by tingling or burning pain, and the pain is distributed in strips. It is recommended that the right side of the ribs below the tightness of the person in time to go to the hospital, a clear cause, under the guidance of the doctor for standardized treatment.