“What does it mean if you have a low blood count?”

"Low blood count" most commonly refers to a condition called, "anemia." Anemia occurs when the body does not have enough red blood cells. The red blood cells are the ones that carry the oxygen to the body, and if they are "low" it might cause fatigue, pale skin, or even shortness of breath. Anemia is often caused by low iron or blood loss. In young women, it is often caused by a poor diet (not enough iron) or heavy menstrual bleeding. She should follow up with her doctor to evaluate the cause of her anemia and get proper treatment.