MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY
Iron-deficiency anaemia. Light micrograph of a blood smear from a patient suffering from iron- deficiency anaemia. This is the most common form of anaemia worldwide. It is caused by a deficiency of iron, an essential component of the blood pigment haemoglobin. Here, a field of red blood cells (spherical structures) is seen. Due to this form of anaemia these cells stain poorly (they are hypochromic). Many of the cells are irregularly shaped and smaller than normal. This reduces their oxygen-carrying capacity. Symptoms include tired- ness, dizziness, and pale skin. Two white blood cells (centre right, purple) serve to fight infection. Magnification unknown.
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