Stem cells are considered the future of medicine and have the potential to treat a wide range of diseases and injuries. The most versatile stem cells come from embryos, but the controversy surrounding their use has led scientists to explore alternative sources. Menstrual blood has been found to contain mesenchymal stem cells (MSCs) that can differentiate into various types of cells, making them a promising source for medical research. In fact, research has shown that MSCs derived from menstrual blood have the potential to be used in treating diseases like Alzheimer’s. These cells could provide a non-invasive and accessible source of treatment, with the potential to reduce beta-amyloid plaques in the brain and improve cognitive function in patients with Alzheimer’s. Though still in the early stages of research, the use of menstrual blood-derived MSCs holds great promise for the future of regenerative medicine.