What happens if I have too much erythropoietin? Excess erythropoietin results from chronic exposure to low oxygen levels or from rare tumours that produce high levels of erythropoietin. It causes a condition known as polycythaemia which means high red blood cell count. The symptoms of high erythropoietin= 1) increased blood viscosity.
2) less effective blood supply and oxygenation. 3) high blood pressure in the lungs. 4)life-threatening blood clots. 5)stroke.