If there is soreness in the lumbar region, the first thing to consider is the lumbar muscle strain caused by the recent cold, fatigue or long time bad posture habits. This situation needs to pay attention to correcting bad posture habits, and then you can do a local hot compress, physical therapy. If the pain is obvious, you can also use non-steroidal anti-inflammatory drugs for pain treatment. It is also necessary to do regular health exercises for the lower back. If you have a sore lower back, it may also be caused by some organ lesions, such as urinary tract infections, you can have a urinary tract ultrasound and routine urine examination. If it is caused by infection, you can choose the appropriate sensitive antibiotics for standard anti-infection treatment. At the same time, pay attention to cleanliness and hygiene, and also pay attention to drinking more water and urinating more often. If you have a sore back, it may be caused by gynecological inflammation or tumor, so you need to go to the gynecological clinic for a checkup and treatment under the guidance of a doctor.