Symptoms and Causes

Overview Irritable bowel syndrome (IBS) affects the digestive system. It causes symptoms like stomach cramping, pain, bloating, gas, diarrhea, constipation, or both. This is a long-term…

What Is Sciatica Sciatica happens when pain radiates along the sciatic nerve path from your lower back, through your buttocks, and into your leg. This painful…

What Are Canker Sores? Canker sores are small, shallow sores that form inside the mouth on soft tissues or at the base of the gums. Unlike…

What is Tinnitus? Tinnitus is the perception of noise or ringing in the ears when no external sound is present. This sound isn’t audible to others,…

Overview Colon cancer develops in the colon, the longest section of the large intestine. This disease typically affects older adults but can occur at any age….

What Are Cold Sores? Cold sores are small, fluid-filled blisters that typically appear on or around the lips. Blisters usually appear in clusters, break open, form…

Overview Pink eye, or conjunctivitis, occurs when the conjunctiva becomes inflamed. When this happens, small blood vessels swell and become more visible, giving the eye a…

Overview Pneumonia causes inflammation in the air sacs, which can fill with fluid or pus. This leads to symptoms like coughing with phlegm, fever, chills, and…

Overview Celiac disease occurs when the body’s immune system reacts to gluten, a protein in wheat, barley, and rye. This reaction damages the small intestine lining,…

Fibromyalgia is a chronic pain disorder. It causes widespread pain, tenderness, and fatigue. The exact cause of fibromyalgia is unknown. However, researchers believe that a combination…