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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

Reactive Arthritis

https://www.niams.nih.gov/health-topics/reactive-arthritis

What is reactive arthritis? Reactive arthritis is pain or swelling in a joint that is caused by an infection in your body. You may also have red, swollen eyes and a swollen urinary tract. These symptoms may occur alone, together, or not at all. Most people with reactive arthritis recover fully from the first flare of symptoms and can return to regular activities 2 to 6 months later. Some people will have long-term, mild arthritis. A few patients will have long-term, severe arthritis that is difficult to control with treatment and may cause joint damage.

Psoriasis

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

What is psoriasis? Psoriasis is a chronic (long-lasting) disease in which the immune system works too much, causing patches of skin to become scaly and inflamed. Most often, psoriasis affects the: Scalp. Elbows. Knees. The symptoms of psoriasis can sometimes go through cycles, flaring for a few weeks or months followed by times when they subside (or go into remission). If you have psoriasis, you may have a higher risk of getting other serious conditions, including: Psoriatic arthritis. Heart attack or stroke. Mental health problems, such as low self-esteem, anxiety, and depression.

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.

Alopecia Areata

https://www.niams.nih.gov/health-topics/alopecia-areata

What is alopecia areata? Alopecia areata is a disease that attacks your hair follicles (the part of your skin that makes hair). In most cases, hair falls out in small, round patches about the size of a quarter. This causes only a few bare patches. Some people may lose more hair. In only a few people, the disease causes total loss of hair on the head or loss of all body hair. Your hair may grow back, even if you lose all of it. But it may fall out again. No one can tell you when it might fall out