Which hormone regulates the development of platelets?

The hormone that regulates the development of platelets is thrombopoietin. This hormone is primarily produced by the liver and kidneys and plays a crucial role in the production of platelets from megakaryocytes, which are large bone marrow cells. Thrombopoietin increases the production of platelets in response to low platelet counts, thereby maintaining hemostasis and ensuring that the body can respond effectively to bleeding. Its specific action on the precursor cells in the bone marrow makes it essential for normal platelet production and function.