The origins of marginalization in nursing and the health sector in Ghana can be traced to colonialism and how a colonial era laid a solid foundation for inequities and entrenched disparities, as well as the subsequent normalization of marginalizing acts, in the health sector, particularly for women. Drawing upon varied literature over a 60‐year period and perspectives from feminist theory, this paper considers the lasting impact of Ghanaian women's historical position during the colonial era and within the patriarchal system that ensued. Through this process, it becomes possible to shed light on the crucial role that colonialism has played in women's experiences, perspectives, and health‐seeking behaviors, and the manner in which it has created a healthcare sector that marginalizes women's health. Although women possess valuable knowledge which should be an asset to consider when providing healthcare services, marginalization of that knowledge has become normalized across society and the healthcare system. There is an urgent need to disrupt and challenge this normalization, and to advocate empowerment and recognition of women's valuable knowledge and experiences, providing women a voice in health decision‐making discourses and in the research processes by which we understand and develop healthcare. Through this, healthcare in Ghana could become more empowering, inclusive, and responsive to the unique experiences and needs of Ghanaian women. By understanding something of the historical origins of women's health marginalization within colonialism, nurses can begin to appreciate women's knowledge and integrate it into healthcare strategies that are more gender‐sensitive and equitable.