Primary health care (PHC) refers to essential health care that is accessible, affordable, and provided at the local community level. It aims to address the most common health problems and is the first point of contact for individuals with the health system. PHC services include health promotion, disease prevention, treatment of common illnesses, and community development. It is intended to be universally accessible and rely on community participation. The principles of PHC emphasize equity, self-reliance, and intersectoral coordination.