Many friends have had back pain symptoms, some will have back pain after exertion, some will have back pain when it is cold, some older friends will also have back pain for a long time. In that case, what is the cause of back discomfort? These seemingly small symptoms of the back, but also hidden you do not know the big hidden danger! Back pain caused by short-term bending is a normal symptom! The muscle next to the spine on our back extends from the shoulder blade to the waist, this muscle is very long, and the longer the muscle is stretched, the easier it is to damage, when the muscle is stretched there will be pain, so when a person bends over after work will be back pain. It is also because the muscles are stretched, so short-term labor on the muscle damage will not be too serious, basically will not affect the health, after rest can be relieved. Long-term back pain, what’s the problem? When the muscles are repeatedly stretched and more serious muscle breaks occur, the pain will continue and will not be easily relieved. Some of my older friends have back pain that lasts for a long time, basically for this reason. When the back muscle breaks, it will also regrow a new muscle, but the muscle will also leave scars in the muscle, just like a patch, at this time, once there is any stimulation, the back may continue to have pain. What’s wrong with back pain and fear of cold? People who have back pain when it’s cold are basically people who have had their back muscles stretched, damaged, or broken, and then grew well and left scars. When the day is cold, the blood circulation in the scarred area will be a little slow, less blood supply, poor blood flow, the back will naturally have pain, such back pain, usually a sore feeling. Relief method: Apply hot compresses with hot water bags or other heating objects on the painful area to accelerate blood flow, which can relieve the symptoms after half a month. Back pain may be a sign of lung cancer! One of the symptoms of lung cancer is pain in the front and back. Although back pain is related to lung cancer, it is not that all lung cancers will have this signal, which is related to the location of tumor growth. Back pain caused by lung cancer, which is accompanied by breathing pain and will become more and more painful, is caused by tumor cells growing and pressing on nerves. If the back pain does not have this feature, then you can rest assured that your back pain is not related to lung cancer. Back pain when you wake up after 50 years old may be a fracture! People after 50 years old may develop osteoporosis, among which cancellous bone (vertebrae of the back spine) is very prone to osteoporosis. If your back suddenly hurts when you get up in the morning, it is a typical vertebral compression fracture. Sleeping lying down is fine, suddenly get up a stand, nearly a hundred pounds of weight all pressed on the spine, after the force of the loose bones will be flattened, the first performance after the flattening is back pain. This pain is not serious, but will always continue.