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Abstract
In today's world the enormous amount of data is generated from different sources throughout the world. This huge and massive heterogeneous data is called Big Data. Big Data Analytics offers tremendous insights to many organizations, particularly in health care. The traditional database architectures are not up to the mark to face the challenge with vast data, which is pouring into organizations today, and it creates a big havoc. The growth of big data in bio-medical and healthcare community services is increasing rapidly day by day. The early detection of diseases and patient care are analyzed with the help of accurate data analysis of medical data includes diagnosing patients' details. Big Data Analytics plays a major role in solving issues and challenges arise in the healthcare domain. This paper gives the survey on big data in various Healthcare domains.