Back pain is considered for the following three reasons: first, coronary heart disease, angina pectoris, when angina pectoris attacks will appear back pain, most of the pain in the precordial region radiates to the back, while chest tightness, shortness of breath, panic, weakness, sweating, dizziness, most of the symptoms can be relieved after rest or nitroglycerin, common in elderly patients. Second, acute cholecystitis, sudden onset of back pain, along with abdominal pain, nausea, vomiting or other digestive system symptoms. Third, cardiovascular neurosis, common in young people without previous diagnosis of cardiovascular disease, will appear back pain, accompanied by pain in the precordial region, chest tightness, shortness of breath, each pain for a long time, the pain site is not fixed, after rest or drug treatment symptoms relief is not obvious, most of them are given psychotherapy. Fourth, kidney stones, back lower back pain if close to the waist, and the possibility of kidney stones leading to renal colic.