Why would abody turn green after death?

A body turns green after death primarily due to the process of decomposition and the action of bacteria. As tissues break down, bacteria produce gases and pigments, including hydrogen sulfide, which can react with iron in the blood to form a greenish compound. Additionally, the breakdown of hemoglobin can lead to the formation of biliverdin, a green pigment. This discoloration is typically most noticeable in areas where blood pools, such as the abdomen.