Why is human feces sometimes blue?

Sometimes scientific question and answer programs and Google search applications get questions like "Why do people sometimes have blue?". A newly posted video of SciShow on Youtube helped explain this delicate but relatively popular question.

>>>Stool colors reveal your health

According to the host of SciShow Hank Green, the main cause of blue feces is that our bodies are not digested easily.

Usually, human feces are brown due to the production of liver bilirubin pigments when processed and used red blood cells. This chemical undergoes 7 major transitions before it ends as a brown dye for feces. During the "transformation" process , it will be distributed throughout the body, moving through the spleen, blood, liver, gallbladder and duodenum before it leaves your body, causing the stool to be brownish in color. .

Therefore, you may notice that your stool is not brown when you have abdominal pain or have used a laxative. The green color of the stool may imply that your irritated intestine has moved waste too quickly and the bacteria in your digestive system have no time to completely digest the bile in the waste.

In addition, according to the US Mayo Medical Center, the blue "defecation" can also be a result of eating too much green vegetables, using iron or iron supplements or absorbing too many dyes. blue food color.