Chronic inflammatory diseases are long-lasting conditions where the body's immune system mistakenly attacks healthy tissues, leading to ongoing inflammation. Common examples include rheumatoid arthritis, inflammatory bowel disease, and asthma. These diseases can cause pain, swelling, and damage to various organs over time. The exact cause of chronic inflammation can vary, but it often involves a combination of genetic, environmental, and lifestyle factors. Treatment typically focuses on reducing inflammation and managing symptoms through medications, lifestyle changes, and sometimes physical therapy. Early diagnosis and intervention can help improve quality of life for those affected.