Vitamin DFact Sheet for Health ProfessionalsWoman shopping for dietary supplementsHave a question?Ask ODS: ods.od.nih.gov/contactTable of ContentsIntroductionReference IntakesSources of Vitamin DVitamin D Intakes and StatusVitamin D Defici

Cauda Equina SyndromeAlthough leg pain is common and usually goes away without surgery, cauda equina syndrome, a rare disorder affecting the bundle of nerve roots (cauda equina) at the lower (lumbar) end of the spinal cord, is a surgical emergency.

Adult Forearm FracturesYour forearm is made up of two bones: the radius and ulna. In most cases of adult forearm fractures, both bones are broken.Fractures of the forearm can occur near the wrist at the farthest (distal) end of the bone, in the m

Congenital Muscular Torticollis (Wry Neck)Congenital muscular torticollis, also called twisted neck or wry neck, is a condition in which an infant holds his or her head tilted to one side and has difficulty turning the head to the opposite side.I

Sprained ThumbA sprained thumb occurs when the ligaments that support the thumb stretch beyond their limits or tear. This usually happens when a strong force bends the thumb backwards, away from the palm of the hand. The most common way for this to

Synovial ChondromatosisSynovial chondromatosis (also called synovial osteochondromatosis) is a rare, benign (noncancerous) condition that involves the synovium, which is the thin layer of tissue that lines the joints. Synovial chondromatosis can ar

Bone, Joint, and Muscle Infections in ChildrenChildren can develop infections in their bones, joints, or muscles. Often referred to as "deep" infections, the technical names for these conditions are:Osteomyelitis (bone infection)Septic arthritis

Malunion in the Lower LimbWhen a broken bone heals in an abnormal position, it is called a malunion. There are different abnormal positions in which a bone can heal. For example, the bone may be crooked, rotated, or shorter than it was before. A co