Feeling sore may be caused by physiological factors such as sedentary, menstruation, or pathological factors such as lumbar muscle strain and ligament inflammation. 1. Physiological factors: such as women’s menstruation, sedentary work for a long time, etc. caused by back pain is a normal physiological phenomenon, usually after rest will be reduced. 2. Lumbar muscle strain: lumbar muscle strain is due to long-term engagement in heavy physical labor, the muscles and fascia between the waist for a long time congestion, edema and lumbago caused by. 3. Ligament inflammation: Inflammatory reaction of supraspinous and interspinous ligaments, which stimulates the surrounding muscle tissues and causes long-term lumbago. In addition to the above reasons, lumbar disc herniation, urinary tract infection, etc. can also cause lumbago symptoms. Therefore, when patients experience lumbago, they should be admitted to the hospital in time to clarify the cause of the disease and carry out targeted treatment to avoid further aggravation of the condition.