A pallor of the skin, fatigue, shortness of breath at the least effort, tachycardia (that is to say, the heart that beats too fast) may be signs of anemia.

Anemia is defined by a decrease in the effectiveness of red blood cells (or red blood cells) either because they are not numerous enough or because their quality is deficient. More specifically, anemia is defined as a decrease in the level of hemoglobin in the blood (hemoglobin st present in red blood cells).

Anemia can be regenerative, that is, the body is able to make the missing red blood cells, or it is aregenerative and the body is unable to replace the missing red blood cells.

Red blood cells (also called red blood cells) are made by the bone marrow. These are red blood cells (seen under a microscope) that give red color to the blood, which stain the skin and mucous membranes.

But the primary function of red blood cells is to carry oxygen to the organs. This function is provided by a large molecule in the red blood cell called hemoglobin (Hb); it is - among others - made of iron.

At the origin of this deficiency there can be different factors and more or less serious pathologies. It is important not to neglect the symptoms of anemia, and to consult a doctor to identify their specific cause.

Read also :

> Hemolytic anemia
> Iron deficiency anemia
> Blood group: ABO and rhesus system
> The karyotype

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