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Polymyalgia Rheumatica

https://www.niams.nih.gov/health-topics/polymyalgia-rheumatica

What is polymyalgia rheumatica? Polymyalgia rheumatica causes muscle pain and stiffness in the neck, shoulder, and hip. The pain and stiffness usually occur in the morning or when you haven’t been moving for a while. It typically lasts longer than 30 minutes. For most people, the condition develops over time. But for some people it can start quickly – even overnight. In addition to stiffness, you may have a fever, weakness, and weight loss. Polymyalgia rheumatica usually goes away within one year, but it could last several years. People with polymyalgia rheumatica often have giant cell arteritis a disorder associated

Pemphigus

https://www.niams.nih.gov/health-topics/pemphigus

What is pemphigus? Pemphigus is a type of disease where the body’s immune system attacks healthy cells in the top layer of skin (epidermis). It causes blisters on the skin and in the mouth, nose, throat, eyes, and genitals. Some forms of pemphigus can cause death if not treated.

Bursitis

https://www.niams.nih.gov/health-topics/bursitis

What is bursitis? Bursitis is a common condition that causes swelling and pain around muscles and bones. Bursitis is the swelling of the bursa, a small, fluid-filled sac that acts as a cushion between a bone and other moving parts, such as muscles, tendons, or skin.

Osteonecrosis

https://www.niams.nih.gov/health-topics/osteonecrosis

What is osteonecrosis? Osteonecrosis is a bone disease. It results from the loss of blood supply to the bone. Without blood, the bone tissue dies. This causes the bone to collapse. It may also cause the joints that surround the bone to collapse. If you have osteonecrosis, you may have pain or be limited in your physical activity. Osteonecrosis can develop in any bone, most often in the: Thigh bone (femur). Upper arm bone (humerus). Knees. Shoulders. Ankles. It is also called: Avascular necrosis. Aseptic necrosis. Ischemic necrosis.

Behçet’s Disease

https://www.niams.nih.gov/health-topics/behcets-disease

What is Behçet’s disease? Behçet’s disease can affect different parts of your body. If you have the disease, you probably have sores in the mouth or on the genitals (sex organs). More serious symptoms can include swelling, heat, redness, and pain in the eyes and other parts of the body. The disease is named after the doctor who first described it, Dr. Hulusi Behçet.

Growth Plate Injuries

https://www.niams.nih.gov/health-topics/growth-plate-injuries

What are growth plate injuries? Growth plates are areas of growing tissues that cause the long bones in children and teens to grow. Injuries to the growth plate happen when a break or fracture develops near or at the end of a long bone. The growth plate is the weakest part of the growing skeleton. Growth plate injuries usually happen at the: Bones of the legs. Wrist. Ankle. Foot. Hip bone. When you finish growing, the growth plates close and are replaced by solid bone.

Knee Problems

https://www.niams.nih.gov/health-topics/knee-problems

What are knee problems? Knee problems happen when you injure or develop disease in your knee and it can’t do its job. The knees provide stable support for the body. They also allow your legs to bend and straighten. Both flexibility and stability are needed to stand, walk, run, crouch, jump, and turn. Other parts of your body help the knees do their job. These are: Bones. Cartilage. Muscles. Ligaments. Tendons.

Sports Injuries in Youth: A Guide for Parents

https://www.niams.nih.gov/health-topics/sports-injuries-in-youth

What are sports injuries in youth? Although sports injuries can range from scrapes and bruises to serious brain and spinal cord injuries, most fall somewhere between the two extremes. Here are some of the more common types of injuries: Muscle sprains and strains. Injuries of a growth plate, area of tissue at the end of the long bones in growing children and teens. Injuries from overuse of muscles and tendons. Learn more about sports injuries.