The escalating production of Microplastics in marine environments has become a critical environmental issue. This in-depth study examines the worrying issue of microplastic pollution in aquatic environments, revealing notable gaps in the literature and presenting significant research opportunities. Microplastics, derived from the degradation of plastic waste, represent a major challenge for aquatic ecosystems due to their ease of ingestion by wildlife, with common polymers as the main sources. Major pathways of introduction include urban wastewater discharges and the mass disposal of plastic waste. Bioaccumulation, effects on marine ecosystems and identification techniques are areas requiring further exploration. At the same time, the increasing production of microplastics in marine environments is a critical environmental issue. Bibliometric analysis reveals key themes, including sources, production pathways, ecological impacts, and mitigation strategies. This research not only highlights current concerns, but also identifies emerging topics such as advanced monitoring technologies and sustainable production alternatives. Together, these findings offer crucial insights to guide future investigations aimed at mitigating the growing challenges associated with microplastic production in marine ecosystems.