👉 Calcemia is a condition in which there is an accumulation of blood cells, particularly red blood cells. It occurs when the body's production of hemoglobin (a protein that carries oxygen) is insufficient or not properly produced. This can lead to symptoms such as fatigue, shortness of breath, and joint pain. Calcemia is often associated with a genetic disorder called Ciliomeningoencephalopathy, which affects the blood vessels in the brain. Calcemia can be caused by several factors