Patients with any undiagnosed sign, symptom, or health concern can be treated by primary care physicians in a comprehensive, first-contact, and ongoing manner regardless of their origin, organ system, or diagnosis. As well as promoting health, preventing disease, maintaining health, educating patients, and diagnosing and treating acute and chronic illnesses, primary care also includes health promotion and disease prevention. Generally, primary care is provided by a personal physician, who may consult with other health professionals or refer you to a specialist if necessary. The primary care professional is responsible for advocating for the patient's interests within the health care system in order to achieve cost-effective and equitable health care.   Routine visits to a primary care clinic may involve the treatment of acute injuries or illnesses, regularly scheduled checkups, and screenings for various conditions.