disorders of nutrition
Vitamin K Deficiency
Symptoms of Vitamin K Deficiency
The main symptom of vitamin K deficiency is bleeding (hemorrhage)—into the skin (causing bruises), from the nose, from a wound, in the stomach, or in the intestine. Sometimes bleeding in the stomach causes vomiting with blood. Blood may be seen in the urine or stool, or stools may be tarry black. In newborns, life-threatening bleeding within or around the brain may occur. Having a liver disorder increases the risk of bleeding, because clotting factors are made in the liver. Vitamin K deficiency may also weaken bones. 