Overview of Anemia Anemia is a common blood disorder that occurs when there are fewer red blood cells than normal or there is a low concentration of hemoglobin in the blood. Candidiasis (Yeast Infection) Candidiasis is an infection caused by yeast on the skin and/or mucous membranes. The symptoms vary depending on the location of the infection. Colorectal Cancer Most people who have colorectal cancer are older than 50. This type of cancer is also associated with a diet high in fat and calories and low in fiber. Hypothyroidism Hypothyroidism is the condition in which the thyroid is underactive—producing too little thyroid hormone. Osteoarthritis Osteoarthritis, the most common form of arthritis, is a chronic, degenerative, joint disease that affects mostly middle-aged and older adults. Systemic Lupus Erythematosus (Lupus) Most people who have lupus are young women. The effects of the disease can range from mild to severe. Headache Headaches vary greatly in terms of pain location, pain intensity, and how frequently they occur. How a Migraine Happens One theory says that migraine pain occurs because of waves of activity by groups of excitable brain cells, which trigger chemicals, such as serotonin to constrict blood vessels. Migraine Headaches A migraine headache is unique among headaches because it includes symptoms other than pain. Nausea and vomiting, lightheadedness, and sensitivity to light are common with a migraine. Get the Right Help for Headaches When seeking treatment for headaches, start with your primary care provider. Cystocele (Fallen Bladder) Cystocele is the name for a hernia-like disorder in women that occurs when the wall between the bladder and the vagina weakens, causing the bladder to drop or sag into the vagina. Urinary Tract Infections (UTIs) Urinary tract infections are a serious, but common, health problem that affects millions of people each year. Women are especially prone to urinary tract infections. Interstitial Cystitis Interstitial cystitis is a complex, chronic disorder marked by an inflamed or irritated bladder wall. It can lead to scarring and stiffening of the bladder and decreased bladder capacity. Fibromyalgia Detailed information on fibromyalgia, including cause, triggers, symptoms, diagnosis, and treatment Urinary Incontinence Urinary incontinence is the loss of urine control, or the inability to hold your urine until you can reach a bathroom.