The healthcare sector is undergoing a major transformation with the development of technology. One of the most important elements of this transformation is data security and tracking systems. The security, confidentiality, and accuracy of data used in the healthcare sector are extremely important for patients' health. Therefore, blockchain technology is extremely important for data security and tracking systems in the healthcare sector.\n\nBlockchain technology is a distributed database and is highly effective in terms of data security and accuracy. This technology ensures that data is stored securely without being dependent on a central authority. Blockchain technology prevents data from being changed or deleted, ensuring the accuracy and security of data.\n\nUsing blockchain technology in the healthcare sector, patients' medical records can be stored securely. This way, patients' medical histories, medication use, allergies, and other medical information can be stored securely. This information can be used by doctors during patients' treatments, and accurate treatment methods can be determined.\n\nBlockchain technology is also highly effective for drug tracking systems. Using blockchain technology, drugs can be tracked from production to distribution. This way, information such as where drugs were produced, which stages they went through, and which patients they were given to can be stored securely.\n\nBlockchain technology is highly effective for data security and tracking systems in the healthcare sector. With this technology, patients' medical records can be stored securely, and drug tracking systems can be made more effective. Using blockchain technology in the healthcare sector, patients' health and safety can be better protected.\n\nKeywords: Blockchain Technology, Healthcare Sector, Data Security, Tracking System, Medical Records, Drug Tracking System.