What’s wrong with the pain in the left side of my lower back?

The causes of vague pain in the left rib and waist area may be rib fracture, soft tissue injury, pleurisy, nephritis and so on.
1. Rib fracture: when the left rib and waist area is subjected to external violence, it can lead to rib fracture, which can be manifested as vague pain in the left rib and waist area when the condition is mild, and it can be accompanied by swelling and bruising of the skin in the area.
2. Soft tissue injury: when soft tissue injury occurs in the left rib-waist area due to exertion, trauma, long-term bad posture, etc., it can be manifested as hidden pain in the left rib-waist area, and when the condition is serious, it can be severe pain, accompanied by swelling and activity limitation.
3. Pleurisy: when bacteria, fungi, virus and tumor invade the pleura of left rib-waist, it can lead to inflammatory reaction of the tumor, which can be manifested as vague pain in the left rib-waist area, and accompanied by symptoms such as cough and chest tightness.
4. Nephritis: Hidden pain in the left rib and waist area may be caused by bacterial infection and other causes of nephritis, which may also be accompanied by hematuria, proteinuria, edema and other symptoms.
There may also be other causes of pain in the left side of the waist, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.