Prostaglandins are a group of lipid compounds that are produced in the body and play a crucial role in various physiological processes. They are derived from fatty acids and act as signaling molecules, helping to regulate functions such as inflammation, blood flow, and the formation of blood clots. These compounds are involved in the body's response to injury and illness, promoting healing and pain sensation. Prostaglandins can also influence reproductive functions, such as the menstrual cycle and labor. Due to their significant roles, they are often targeted by medications, like nonsteroidal anti-inflammatory drugs (NSAIDs), to alleviate pain and inflammation.