Can blood glow

Blood itself does not glow in the dark; however, it can appear to glow under certain conditions, such as when exposed to ultraviolet (UV) light due to the presence of certain compounds. Additionally, bioluminescent organisms, like some jellyfish, can produce light, and if their blood interacts with certain chemicals, it may exhibit glowing properties. In a laboratory setting, certain dyes or reactions can also cause blood to fluoresce.