Rib pain in late pregnancy may be caused by physiological conditions, such as calcium deficiency, or it may be caused by pathological reasons, such as costochondritis, bone tumors, and lung diseases. Rib pain in late pregnancy may be due to calcium deficiency. As the months of pregnancy increase, the calcium requirement of pregnant women is also increasing. Therefore, from the middle of pregnancy should be timely supplementation of calcium, at the same time, should also be more sunshine, appropriate activities to promote the absorption of calcium. Poor rest may lead to costochondritis, which is a sterile inflammation of the ribs that can be painful. This condition is relieved by proper rest. If the rib pain is related to breathing, or the symptoms cannot be relieved after resting, you need to go to the hospital for further examination to exclude organic lesions such as bone tumors and pneumonia. If the rib pain in late pregnancy cannot be relieved after symptomatic treatment, you should go to the hospital in time and do the relevant treatment, and standardize the treatment as prescribed by the doctor.