ASHA workers primarily act as a link between the community and healthcare systems, ensuring that pregnant women and children receive timely maternal and child health (MCH) services like immunizations, antenatal care, and nutrition counseling. They do not perform major surgeries or prescribe medications, which require specialized medical training. Their role focuses on health education, referral, and facilitating access to healthcare facilities. This support improves early detection of complications and promotes institutional deliveries, directly impacting MCH outcomes. Therefore, facilitating community access to MCH services is their key contribution.

Reference: Park’s Textbook of Preventive and Social Medicine, K. Park, 25th Edition.