Meta-analysis is a well-established statistical analysis method that aims to analyze the number of different studies which are addressing the same hypothesis. This statistical analysis increases the efficiency of the output and provides us with consensus and significant results. When addressing several datasets, the relevance of the meta-analysis is revealed when some hidden feature or the results are brought up. The available literature also provides us with references to numerous meta-analysis studies in different scientific areas to provide new insight into available research with discoveries and outcomes. In our comprehensive and extensive review study, we will embark upon a thorough investigation into the pivotal role and profound impact of meta-analysis in various fields, encompassing but not limited to bioinformatics, medicine, criminology, ecology, cancer research, education, psychology, pharmaceuticals, food safety, epidemiology, neurodegenerative diseases, diabetes, and hypertension. By immersing ourselves in the intricacies and complexities of these diverse and multifarious subjects, our all-encompassing and in-depth study aims to delve deeply into the very essence of the challenges and opportunities that pervade a vast array of disciplines. From the critical realm of healthcare to the captivating and enthralling realm of social sciences, we seek to unravel the interconnected and interwoven tapestry of issues and possibilities that span across a wide spectrum of scholarly fields.