Myelodysplastic syndrome (MDS). Like with leukemia, which is a hematological malignancy, treatment effect is poor, the incidence rate of 2 to 3 times leukemia.
Secondary MDS often obvious predisposing factors. The main component of hair dye p-phenylenediamine and hydrogen peroxide, will affect the hematopoietic stem cells, is a recognized carcinogen. The thin scalp capillaries very rich, benzene organic matter through the capillaries into the scalp, then with the blood circulation to reach the bone marrow, leading to malignant transformation of hematopoietic stem cells, and induce blood disorders. "The curr ent relevance of hair and leukemia has been widely recognized in the medical profession, the hair has become one of the causes of leukemia."
If you adhere to the hair is beautiful, dyed twice a year at most, and the color should not be too deep. Always wear gloves when using hair dyes, avoid direct contact with the skin; close to one centimeter scalp hair, do not try to dye it.