The term "health complication" refers to any unexpected or undesirable development in a person's health that arises as a result of an existing medical condition, treatment, or injury. These complications can range from mild to severe and may require additional care, treatment, or intervention to manage or resolve. Health complications can be acute (develop quickly) or chronic (persistent over time), and they can impact various aspects of a person's health, including physical, mental, and emotional well-being. Examples of health complications include infections, side effects from medications, worsening of an existing condition, and postoperative issues.