The left side of the rib area is uncomfortable, but there is no obvious pain.1. The most common clinical situation is because of the intercostal neuritis or muscle injury in the rib area after long-time work or strenuous exercise, which is mainly manifested by the local soreness, distension, and a little limitation of activity, and may induce mild pain when taking a deep breath, which often requires attention to rest, and can be combined with the local massage, massage or hot compress treatment, such as hot towel, hot water bag or infrared lamp treatment to improve the symptoms.2. Hot compress treatment, such as hot towels, hot water bags, or infrared lamp treatment, if necessary, can be applied externally fuchsin ointment, oral non-steroidal anti-inflammatory pain relievers, in order to improve the symptoms. 2, atypical myocardial ischemia or angina pectoris, will also appear on the left side of the rib region of the boring pain, discomfort, at this time, need to improve the electrocardiogram examination or blood tests.