Hidden pain on the right side of the lower ribs may be physiological factors, may also be the manifestation of certain diseases, such as costochondritis, spinal lesions, intercostal neuralgia, etc., should be timely consultation to find out the cause of the disease. 1. Physiological factors: it is possible that the right side of the body has been compressed during sleep at night, and some relatively thin and weak people will have pain under the ribs when they take a deep breath, usually not accompanied by other uncomfortable symptoms, do not need to worry too much about correcting the bad sleep posture can be relieved. 2. Pathological factors (1) Costal chondritis: it is usually caused by viral infection or chronic strain injury, usually, if the chest suffers from severe impact, it may also induce costal chondritis. Costochondritis usually leads to hidden pain on the right lower side of the rib cage. (2) Spinal lesions: such as herniated discs, osteophytes and other compression of the right side of the thoracic nerves, which can lead to the patient to appear the right side of the lower ribs hidden pain. (3) Intercostal neuralgia: The pain is caused by damage to the thoracic nerve or intercostal nerve, which is manifested as vague pain on the right lower side of the rib cage. This symptom alone is not enough to diagnose the disease, but may also be caused by other factors, such as spontaneous pneumothorax, pneumonia, gallbladder stones, etc.. Therefore, when the patient excludes the physiological causes, he should consult a doctor in time to clarify the cause of the disease and take active treatment.