The average life expectancy of an individual with any type of<unk>  and no neurological symptoms is approximately 37 years, and 29 years if neurological symptoms are present. In the United States, the probability for individuals with the disorder to survive until 40 years of age may be as high as 70% if they have never been exposed to sunlight in their life. In India, many patients with<unk>  die at an early age from skin cancers. However, if a person is diagnosed early, does not have severe neurological symptoms, and takes precautionary measures to completely avoid any exposure to UV light and sunlight, they may be able to survive until middle age.
Xeroderma pigmentosum
Cockayne syndrome
Iododerma
Erythropoietic protoporphyria
Chyloderma
Trichothiodystrophy
Keratoderma
Poikiloderma