Font Size. A. A. A. Nerve blocks are used for pain treatment and management. Often a group of nerves, called a plexus or ganglion, that causes pain to a specific organ or body region can be blocked with the injection of medication into a specific area of the body. The injection of this nerve-numbing substance is called a nerve block.
Symptoms & Causes. The most common symptoms of gas include burping, passing gas, bloating, and pain in your abdomen. Gas normally enters your digestive tract when you swallow air and when bacteria in your large intestine break down certain undigested foods. Doctors may diagnose the causes of gas with a medical history and physical exam.
By Mayo Clinic Staff. For most people, the signs and symptoms of gas and gas pain are all too obvious. They include: 1  Voluntary or involuntary passing of gas, either as belches or as flatus.  Sharp, jabbing pains or cramps in your abdomen. These pains may occur anywhere in your abdomen and can change locations quickly and get better quickly.