Primary health care (PHC) aims to provide universal access to affordable and accessible essential health services. PHC is characterized by community participation and empowerment. It addresses the main health problems in a community through promotive, preventive, curative, and rehabilitative services. Key components of PHC include maternal and child health care, immunization, treatment of common diseases and injuries, and provision of essential drugs. PHC relies on health workers such as physicians, nurses, and community workers to form multidisciplinary teams and respond to community needs.