Are black stools normal after iron infusions?

It is common to experience black or dark-colored stools after receiving iron infusions. This is typically due to the body eliminating excess iron through the digestive system. Iron, when exposed to oxygen, can oxidize and turn dark, leading to the characteristic black or dark color of the stools. This is generally considered a normal side effect of iron infusions and is not usually a cause for concern unless accompanied by other symptoms, such as abdominal pain or excessive diarrhea.