Purpose: This study aims to analyze the contestation between the medical knowledge of midwives and the local knowledge of traditional birth attendants in accompanying pregnant women to delivery in the Gowa Regency. We also investigate the contestation between the medical knowledge of midwives and the local knowledge of traditional birth attendants in postnatal and infant care. Method: The research method uses a qualitative approach with case studies and data collection through interviews, observation, and documentation. Results and conclusion: The results identified three patterns of knowledge contestation between midwives and shaman uncles, namely domination, hybridization, and coexistence. Domination occurs in the context of pregnancy, where the knowledge of the shaman Pamana dominates the midwife, while hybridization occurs during the delivery process with collaboration between the midwife and the shaman Pamana. The pattern of coexistence illustrates that the knowledge of midwives and shaman Pamana is present together without interfering with each other in postnatal care. Research implications: This research is relevant to the maternal and newborn health system in Gowa Regency with the following implications: 1) Integration of medical and local knowledge is needed in the practice of midwives and birth attendants, emphasizing the need for holistic training for health service providers; 2) Collaboration between midwives and traditional birth attendants can improve the safety of mothers and babies; 3) Cultural awareness is important to improve quality of care; 4) Culturally sensitive practice guidelines are necessary for safe and effective practice; 5) Public advocacy and education can increase awareness of appropriate care. Originality/value: This research reveals the dynamics of contestation between medical and local knowledge in maternal and neonatal health services, providing new insights into their interactions. These findings support the development of more effective interventions, contribute to the reproductive health literature, and provide insights for more inclusive policies.