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  • Anemia Overview
    Anemia is a common blood disorder. It occurs when you have fewer red blood cells than normal, or not enough hemoglobin in your blood. Here's what you need to know about this condition.
  • Clinical Pathology Overview
    Detailed information on clinical pathology and the samples that are tested.
  • Exercise and Older Adults
    Exercise is good for people of all ages. It helps lower blood pressure, reduces the risks for falls and serious injuries, and slows the body's loss of muscle and bone mass.
  • Obesity
    Detailed information on obesity, including obesity causes, obesity health effects, obesity medical treatment, obesity surgical treatment, maintaining weight loss, and obesity prevention
  • Obesity Treatment Overview
    Whatever treatment plan a person follows, losing weight slowly will be more effective and healthier over the long-term.
  • Obsessive-Compulsive Disorder (OCD)
    Obsessive-compulsive disorder (OCD) is a common anxiety disorder. It causes unreasonable thoughts, fears, or worries. A person with OCD tries to manage these thoughts through rituals.
  • Older Adults: Preventing Falls
    Every year, millions of adults fall, leading to injuries and emergency room visits. Many of these falls and injuries can be prevented.
  • Oral Health/Dental Specialists
    Detailed information on different oral healthcare specialists.
  • Oral Medicines
    Many types of diabetes pills are available. Each type works in a different way.
  • Orthodontics/Braces
    Detailed information on getting braces and oral healthcare.
  • Orthopedic Conditions
    Detailed information on orthopedic disorders in children, including fractures, sports injuries, overuse injuries, sprains, strains, and heat-related illness
  • Orthopedic Treatment Team
    Members of your treatment team may include an orthopedic surgeon, a rheumatologist, and a physical therapist. Read on for details.
  • Osteoarthritis (OA)
    Osteoarthritis is the most common form of arthritis. It is a chronic degenerative joint disease that affects mostly middle-aged and older adults. Osteoarthritis causes the breakdown of joint cartilage. It can occur in any joint, but it most often affects the hands, knees, hips, or spine.
  • Osteochondroma
    Osteochondroma is an overgrowth of cartilage and bone at the end of the bone near the growth plate. Most often, it affects the long bones in the leg, the pelvis, or the shoulder blade.
  • Osteomyelitis
    Osteomyelitis is an inflammation or swelling of bone tissue. It’s most often caused by an infection. A bone infection may occur for many reasons. It can affect children or adults.
  • Osteoporosis
    Osteoporosis is a disease that causes weak, thinning bones. This leaves the bones at greater risk of breaking. The bones most often affected are the hips, spine, and wrists.
  • Osteoporosis Index
    Detailed information on osteoporosis and bone density test
  • Osteosarcoma
    Osteosarcoma often affects the long bones around the knee. It happens most often in children, teens, and young adults.
  • Other Ear, Nose, and Throat Disorders
    Detailed information on ear, nose, and throat disorders, including Bell's palsy, deviated septum, sinusitis, snoring, tonsillitis, and ear infections
  • Other Liver Disorders
    Detailed information on autoimmune and metabolic liver disorders, including hemochromatosis (iron overload disorder) and Wilson disease.
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General Information: 314.747.3000
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St. Louis, MO 63110
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