Symptoms and Causes

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…

Understanding Graves’ Disease Graves’ disease is an autoimmune condition that primarily targets the thyroid gland. When someone has this disease, their body produces excess thyroid hormone,…

Overview Raynaud’s disease affects certain body areas, especially fingers and toes. It causes them to feel cold and numb when exposed to cold temperatures or stress….

Overview The liver sits just below the right-side rib cage in the abdomen. It weighs up to 1.8 kilograms (4 pounds). This essential organ performs several…

Understanding Atrial Fibrillation Atrial fibrillation (AFib) is an irregular heart rhythm condition. In AFib, the upper chambers of the heart (atria) beat chaotically and out of…

What is Sjögren’s Syndrome? Sjögren’s syndrome mainly causes dry eyes and mouth. When someone has this condition, their body’s defense system mistakenly attacks the glands that…

Causes Mononucleosis is primarily caused by the Epstein-Barr virus (EBV), although other viruses can cause similar symptoms. The virus spreads when saliva is shared, such as…

What Is Anemia? Anemia occurs when your body lacks enough healthy red blood cells or hemoglobin to transport oxygen properly. This common blood condition affects many…

What Are UTIs? UTIs, or urinary tract infections, affect organs that handle urine. This includes the kidneys, ureters, bladder, and urethra. Most UTIs occur in the…