An example of a systemic disease is lupus, a chronic autoimmune disorder that affects multiple organs and systems of the body, including the skin, joints, blood cells, and organs.Severe systemic disease is any severe health condition that affects many parts of the body, often including the lungs, kidneys, heart, and/or entire digestive system. It can be caused by bacteria, viruses, or other pathogens and can cause a wide range of symptoms.Symptoms of systemic diseases can vary depending on the type and severity of the disease. In general, symptoms may include:
-Unexplained fatigue
-Fever
-Night sweats
-Weight loss
-Breathing difficulties
-Joint pain
-Rashes or other skin changes
-Abdominal pain
-Loss of appetite
-Headache
-Numbness or tingling in extremities
-Swelling in the legs, abdomen, or other areas
-Cognitive changesSystemic viral infection is a very serious illness. It usually requires medical treatment to avoid serious complications and even death. If you think you are at risk of systemic viral infection, you should see a doctor immediately.Systemic conditions refer to medical conditions that affect the entire body or multiple organs. Examples include diabetes, hypertension, cancer, infectious diseases, autoimmune or chronic inflammatory diseases.