About 80% of people have experienced low back pain in their lifetime. There are many causes of low back pain, and the more common ones are lumbar osteophytes, bone spurs, disc herniation and dozens of other causes. Experts remind that different low back pain has different attack times, and people can accurately determine the cause of low back pain by paying careful attention to the characteristics of low back pain. Lumbar muscle strain This type of pain is mostly seen in middle-aged and elderly people, often due to long-term incorrect posture, or muscle strain left by a previous trauma. The scars that form can cause pain by jamming small blood vessels or nerves within the muscles of the lower back. The pain is concentrated in the strained muscles, characterized by pain after sleeping for a long time, or pain before and after getting up in the morning, and the pain will be relieved after walking or massage, and this kind of lumbago is often accompanied by localized fear of cold and wind. Lumbar disc herniation If lumbar pain is combined with leg pain or leg numbness, the diagnosis of lumbar disc herniation is usually confirmed. Because the lumbar region is in the lower part of the trunk and is the place where the trunk moves most frequently, lumbar pain will increase after prolonged sitting and standing. People with herniated lumbar discs often sleep at night or lie in bed during the day to rest can make the ring of the herniated lumbar disc reset slightly, and the pain will be reduced, and in the morning even no pain at all. Osteoporosis The most common manifestation of osteoporosis is low back pain, which is often accompanied by generalized pain. In severe cases, there will be turning pain, waking pain, and the pain will increase when bending, coughing or exerting. In addition, another characteristic of osteoporosis pain is that the pain will increase if you tap lightly on the vertebrae. This is a time to be alerted to the fact that cracks have occurred in the osteoporotic vertebrae, resulting in compression and flattening. Osteoporosis is mostly seen in middle-aged and elderly people, especially in patients who smoke and use a lot of hormones for years, such as asthma patients. Bone cancer Suddenly waking up from a dream with pain in the middle of the night, then such back pain suggests a possible cancer. Cancer may be primary or metastatic. The pain of bone cancer is the most intense among all cancer pains, and it is characterized by activity pain, similar to the pain of vertebral compression fracture in osteoporosis. This disease is the opposite of lumbar muscle strain which will be more comfortable after massage and tapping. Ankylosing spondylitis Ankylosing spondylitis is more common in younger men, with the peak of the condition occurring between the ages of 20 and 40. These patients often have more typical symptoms of morning stiffness, which is a stiffness in the spine when they wake up in the morning that can last for several hours. It is more pronounced in people who have been inactive for a long time, often having difficulty getting up and even having to roll sideways off the edge of the bed. Some patients also have hip and knee pain, neck and back problems, and some may have a combination of intervertebral disc problems. Digestive system disorders Gallbladder infections, pancreatitis, stomach and duodenal ulcers can sometimes cause radiating pain in the lower back. These low back pains do not increase with activity or disappear with rest, and there is no time period. Sometimes the low back pain is relieved when the patient lies in bed and turns around, but these low back pains will only heal if the disease of the organ itself is resolved.