Inheritance patterns of ichthyosis

The inheritance patterns of ichthyosis mainly include three types: 1. Autosomal dominant inheritance: In this pattern, if one parent is affected, the child's risk of developing the condition increases. If both parents are affected, the child's likelihood of being affected is even higher. Specifically, if one parent is an affected heterozygote, the child has a 50% chance of inheriting the disease; if both parents are affected heterozygotes, the child's risk rises to 75%. 2. Autosomal recessive inheritance: In this case, the child may develop the disease if both or one of the parents carries the recessive gene. If both parents are homozygous affected individuals, the child will have a 100% chance of being affected. 3. X-linked inheritance: This primarily affects males, resulting in significantly more male patients than females. If the mother is a carrier, her sons may be affected, while her daughters may become carriers.