What are the connective tissue diseases?
Disease description:
Recently, I overheard someone mention that middle-aged people are particularly susceptible to connective tissue diseases, which frightened me greatly. I would like to learn more about these conditions. Could you please tell me what types of connective tissue diseases exist?
Doctor's answer (1)
Dr. Yang Tiesheng
Connective tissue diseases are a group of rheumatic diseases associated with dysfunction of the immune system. They include multiple types:
1. **Systemic lupus erythematosus (SLE)**: A disease causing multi-organ damage, characterized by the transformation of calcium and phosphate ions from a soluble state into a solid state, followed by their deposition in tissues.
2. **Rheumatoid arthritis (RA)**: A systemic autoimmune disease that primarily affects joints, leading to joint swelling, pain, stiffness, low-grade fever, and muscle aches.
3. **Sjögren's syndrome**: A chronic inflammatory autoimmune disease that affects the salivary and lacrimal glands.
4. **Systemic vasculitis**: Diseases affecting blood vessels of various sizes throughout the body; manifestations vary depending on the size and location of the affected vessels.
5. **Antiphospholipid antibody syndrome (APS)**: An autoimmune disease that does not cause inflammatory responses, and is instead triggered by protective proteins produced by the body.
Common features of these diseases include involvement of multiple organ systems, long disease duration, complex clinical presentations, and possible accompanying symptoms such as fever and joint pain.
