A Wireless Sensor Networks (WSN) is a Wireless Networks comprising of spatially disseminated independent sensors to screen physical or natural circumstances. The battery power in these sensor nodes assumes a significant part in expanding the life expectancy of the nodes. Hierarchical routing protocols are the most popular protocols to limit the energy utilization when compared to Flat Routing. Low-Energy Adaptive Clustering Hierarchy (LEACH) is a traditional Cluster based routing protocol for WSNs having great execution, energy productivity, and successful in elongating the lifetime of the network life time by consuming a little level of the complete disseminated energy in the framework. This paper reviews the condition of craft of various progressed, enhanced routing protocols that have been created from the LEACH. This paper features a portion of the downsides and issues of LEACH how these issues are vanquished by the relatives of LEACH. Appraisal of descendants of LEACH routing protocols in advised with regards to versatility, self-association, and conveyance of nodes, network control, Hop count, energy proficiency, and utilization of data.

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