The development of big data is mainly due to the fast growth in computing power, the number of internet-enabled data-generating devices, and the decreasing prices of data storage itself, which make data accessible to everyone for practically no cost. Health care is one of the main sectors where big data analytics has shown to be much more effective than traditional methods in delivering fruitful results. Big data is primarily concerned with the storage and processing of huge, complex data volumes for which conventional techniques are inadequate. A survey on the use of big data analytics in health care has been conducted in this article to give an overview of the technology, methodology, and algorithms utilized in big data for data management and decision making in healthcare. Academics, academics, and businesses interested in big data and healthcare in particular can benefit from the findings of this study report.