Long noncoding RNAs (lncRNAs) are a class of RNA molecules that are longer than 200 nucleotides and do not encode protein. Despite not having a protein-coding function, lncRNAs have been found to play important roles in regulating gene expression at the transcriptional, post-transcriptional, and epigenetic levels. They are involved in various biological processes, including embryonic development, cell differentiation, and immune response. Research in the field of lncRNAs has revealed their potential as biomarkers for various diseases, including cancer, cardiovascular diseases, and neurological disorders. Understanding the functions and mechanisms of lncRNAs can provide valuable insights into the complex regulatory networks of the cell and may lead to the development of new therapeutic strategies. Overall, the study of lncRNAs is an emerging and rapidly growing field in molecular biology, with the potential to uncover new mechanisms of gene regulation and contribute to our understanding of human health and disease.