Medical cannabis, also known as medical marijuana, is a form of treatment that uses the cannabis plant or its derivatives to alleviate symptoms and improve the quality of life for individuals suffering from various medical conditions. Despite its controversial nature, medical cannabis has been gaining increasing acceptance in the medical community as a viable treatment option for a wide range of diseases and conditions. The following is a comprehensive overview of the current state of medical cannabis research organized by disease or condition. Cancer: Medical cannabis has been shown to have potential therapeutic benefits for individuals with cancer. Studies have demonstrated that cannabis can help alleviate symptoms such as nausea and vomiting caused by chemotherapy, as well as improve appetite and sleep in cancer patients. Additionally, research has shown that certain compounds in cannabis, such as cannabidiol (CBD) and tetrahydrocannabinol (THC), have anti-tumor properties and may e