Lymphedema is a condition characterized by the swelling of body parts, usually the arms or legs, due to a buildup of lymph fluid. This fluid accumulates when the lymphatic system, which helps remove waste and excess fluid from tissues, is damaged or blocked. Common causes include surgery, radiation therapy, or infections that affect the lymph nodes. Symptoms of lymphedema can include a feeling of heaviness, tightness, or discomfort in the affected area. While there is no cure, treatments such as compression garments, physical therapy, and exercise can help manage the symptoms and improve quality of life for those affected.