What are the causes of pain in the upper left abdominal ribs?

There are many possible causes of left upper rib pain, such as intercostal nerve injury, chest tumor, chest inflammation, etc. Patients can be diagnosed by X-ray examination to determine whether the chest shows lesions. They can also take anti-inflammatory and analgesic drugs to relieve their symptoms. After effective treatment, such diseases can achieve ideal treatment results. Patients should prevent their own disease from getting worse and getting better, and prevent other problems from appearing.