health

The prognosis of xeroderma pigmentosum depends on the subtype that
the patient belongs to; however, all patients with XP have over a thousand
times greater risk of developing skin cancer than people without the
disorder. Those with subtype XPA typically develop skin cancer before
they are ten years old. Only 40 percent of people with XP live into their
twenties. A small percentage of patients with milder symptoms live into
middle age. In general, XP reduces a patient’s life expectancy by at least
thirty years.