Small RNA sequencing is a specialized technique designed to analyse and profile small RNA molecules present in a biological sample. Small RNAs are short RNA molecules, typically ranging from 18 to 30 nucleotides in length, and they play essential roles in various cellular processes, including gene regulation, RNA silencing, and post-transcriptional control. Small RNA sequencing is widely used to study the expression profiles of miRNAs and other small RNAs, providing valuable insights into their roles in gene regulation, development, and disease.