The causes of left chest pain for a few seconds are coronary heart disease, neurosis, breast cystic hyperplasia, as follows: 1, coronary heart disease: when strenuous exercise or emotional excitement, coronary artery constriction can be caused by myocardial ischemia, the left anterior thoracic area tingling, oral nitroglycerin vasodilatation treatment, if necessary, should be to the cardiovascular department of the line of standardized anticoagulation or surgical treatment; 2, neurosis: such as intercostal neuralgia or costal chondritis. Neurosis: such as intercostal neuralgia or costochondritis, manifested as stabbing pain in the chest and pain in the back along the edge of the ribs radiating to the front chest, pain can be significantly aggravated by cold or fatigue, can be given oral non-steroidal anti-inflammatory drugs, in the pain in the obvious place to uniformly apply Futenugreek ointment; 3, cystic hyperplasia of the mammary glands: preferred in women aged 30-50 years old, manifested as pain in the breasts with hyperplasia and nodular changes, pain in the tingling or pain when the pain is obvious to be given a towel warm compresses When the pain is obvious, it can be treated with hot compresses on the breasts and oral treatment with free powder or lactic acid granules.