Bleeding
People with leucocytosis often experience a condition known as hyperviscosity syndrome. This is the bleeding of areas that are cover with mucosa. Those might include your intestines, stomach, or mouth. While the issue often occurs with leukocytosis, it is quite rare and only happens in severe cases. You should treat it as an urgent condition that requires immediate medical treatments. Otherwise, you would even die due to the loss of too much blood. [4]
