Daily left rib pain may be due to stomach diseases, costochondritis, pleurisy, shingles, heart disease and other diseases. 1. Stomach diseases: when suffering from gastritis, gastric ulcer and other stomach diseases, it may also cause left rib pain symptoms, but the location of the pain is relatively more against the lower edge of the lower rib cage. 2. Costal chondritis: patients with costal chondritis may also have left rib pain, but the pain is mostly limited and accompanied by swelling: the pressure pain is more obvious. 3. Pleurisy: patients with pleurisy may also experience left rib pain, but it may also be accompanied by chest tightness, dyspnea, fatigue and other symptoms, and may even aggravate the pain when taking a deep breath. 4. Herpes zoster: herpes zoster usually occurs in clusters along the distribution of the costal nerve and is often accompanied by intense pain. 5. Heart disease: when suffering from coronary heart disease, angina pectoris and other diseases, may also cause the symptoms of pain in the left rib. In addition to the above diseases, the presence of intercostal muscle spasm, intercostal neuralgia, rib fracture and other conditions may also cause left rib pain. When the symptoms of left rib pain appear every day, it is recommended to go to the hospital in time, to carry out the relevant items of examination, to clarify the specific diseases, under the guidance of the doctor targeted treatment.