Hemophilia A, B and C have their own different modes of inheritance. Hemophilia A and B are both sex chromosome X-linked recessive. There are four types of inheritance: first, a person with hemophilia A marries a normal woman. The resulting son is normal and all daughters are carriers; second, a normal male and female carrier marry. The sons are 50% likely to have hemophilia A and the daughters are 50% likely to be carriers. Third, there is the marriage of a person with hemophilia A to a female carrier. The probability that the daughter will be a hemophiliac and a carrier is 50% each, and the likelihood that the son will be born with the disease is 50%; fourth, it is a man and a woman who are both hemophiliacs. All of their children are hemophiliacs. The mode of inheritance of hemophilia C is autosomal incomplete recessive, and both men and women can be affected.