Fanconi-Bischkier disease is a rare genetic disorder that causes changes in the blood, bones, kidneys and intestines. The disease has two types: true and false. In a true disease, all organ systems are affected, but in a false disease, only one of them is affected. Today, Fanconi disease is much less common than congenital or hereditary renal dysfunction. The disease has no age-related characteristics. It occurs in people of all ages, nationalities and social status. Fanconi Bishker's pathology is considered so rare that about 80 people live in the world.