Self-supervised learning (SSL) is a machine learning approach that involves training models using raw, unlabeled data, allowing them to generate their own labels during the pre-training stage. This method is particularly beneficial for fields like computer vision and natural language processing, where obtaining large amounts of labeled data can be challenging and costly. Unlike supervised learning, which depends on explicitly labeled data, SSL allows for more scalable and cost-effective model training by reducing the need for extensive data annotation. While SSL shares some similarities with unsupervised learning, it differs because it performs tasks such as segmentation, classification, and regression. Despite its advantages, SSL requires substantial computational power and may initially produce lower accuracy compared to supervised approaches. However, it can enhance model performance through iterative processes and various frameworks like contrastive learning. SSL has practical applications in areas such as healthcare, robotics, and video motion prediction, where it helps improve model autonomy and efficiency by leveraging vast amounts of unstructured data.