There is a tendon pain on the edge of the ribs in the right lower abdomen to consider muscle strain, intercostal neuralgia, muscle strain, liver and gallbladder diseases. 1. Muscle strain: If the intercostal muscle is strained, it can cause localized pain and limited bending activities. 2. Intercostal neuralgia: if deep breathing pain consider the possibility of intercostal neuralgia. 3. Muscle strain: If you often sit for a long time or often bend over, it can cause intercostal muscle strain, causing pain. 4. Hepatobiliary diseases: such as cholecystitis, gallbladder stones, liver abscess can cause pain in the right lower abdominal rib edge, there will be abdominal pain, nausea, vomiting, fever and other symptoms. A tendon pain in the right lower abdomen at the edge of the rib cage continues unrelieved, you need to go to the hospital in time to check the cause of the disease, and if necessary, to carry out the appropriate treatment.