Vasculitis

Vasculitis is a condition where your blood vessels become inflamed. This inflammation causes the walls of your blood vessels to thicken, which can reduce the opening inside them. Blood flow becomes restricted, and in severe cases, blood vessels can close completely or stretch and weaken.

When blood vessels are damaged this way, organs and tissues may not get enough blood. This can lead to pain, tissue damage, or organ problems. Vasculitis can affect blood vessels of any size, from tiny capillaries to large arteries and veins. It can impact just one organ or several parts of your body at once.

There are many types of vasculitis. Some forms are mild and resolve on their own. Others are chronic and require ongoing treatment to prevent serious complications. The condition can affect people of all ages, though certain types are more common in specific age groups.

Symptoms of vasculitis vary widely depending on which blood vessels and organs are affected. Common signs include:

• Fever that doesn't have an obvious cause
• Fatigue and general feeling of being unwell
• Weight loss without trying
• Muscle and joint pain
• Skin rashes, spots, or purple patches
• Numbness or weakness in hands and feet
• Shortness of breath or coughing up blood
• Blood in urine or changes in urine color
• Abdominal pain after eating
• Headaches or vision changes

Some people experience only mild symptoms early on. Others may have severe organ involvement from the start. The symptoms depend on which blood vessels are inflamed and how severe the inflammation is.

Vasculitis happens when your immune system mistakenly attacks your blood vessels. In many cases, doctors cannot identify a specific trigger. Some types of vasculitis run in families, suggesting a genetic component. Infections like hepatitis B or C can trigger certain forms of vasculitis. Some medications, particularly certain antibiotics and blood pressure drugs, may cause blood vessel inflammation in rare cases.

Autoimmune diseases like lupus or rheumatoid arthritis increase your risk. Smoking is a known risk factor for some types of vasculitis. Certain forms are more common in specific ethnic groups or ages. For example, Kawasaki disease mainly affects children under 5, while giant cell arteritis typically affects adults over 50. Having a disorder where your immune system is overactive puts you at higher risk.

Diagnosing vasculitis requires a combination of tests. Your doctor will review your symptoms and medical history first. Blood tests can detect inflammation markers and check organ function. Tests like myeloperoxidase may show elevated levels, as this enzyme is produced by white blood cells involved in inflammation. Other blood work might reveal anemia or kidney problems.

Imaging tests like X-rays, CT scans, or MRIs help doctors see affected blood vessels and organs. Angiography can show abnormalities in blood vessel walls. A biopsy of affected tissue or blood vessels provides the most definitive diagnosis. This involves taking a small tissue sample for examination under a microscope. Specialized testing beyond routine blood panels is often necessary. Talk to a doctor about which tests are right for your symptoms.

Treatment depends on the type and severity of vasculitis. Common approaches include:

• Corticosteroids like prednisone to reduce inflammation quickly
• Immunosuppressant medications to calm the overactive immune system
• Biologic drugs that target specific immune system proteins
• Blood pressure medications to protect affected organs
• Anti-inflammatory diet rich in vegetables, fish, and healthy fats
• Regular gentle exercise to maintain circulation and reduce inflammation
• Stress management techniques like meditation or yoga
• Avoiding smoking and limiting alcohol
• Getting adequate sleep to support immune system balance

Mild cases may resolve without treatment. More severe forms require ongoing medication and monitoring. Work closely with a rheumatologist or specialist who understands vasculitis. Early treatment helps prevent organ damage and serious complications.