Mottled pigmentation (brown patches) or depigmentation (white patches) is common, particularly in sun-exposed areas and are characteristic of Dyskeratosis Congenita. Sun exposure also increases the risk of skin cancers (basal cell, squamous cell and melanoma) which are particularly common in Dyskeratosis Congenita. These complications can be minimized by avoiding strong sunshine, using high factor UVA/UVB sunblock and wearing long sleeved garments when in the sun. Any suspicious moles, lumps or bumps should be checked by a doctor.
Ridged or splitting of nails is very common, even in healthy people. However, most people with dyskeratosis congenita have problems with nails, which can sometimes progress to nail dystrophy: thickened small nails which, in extreme cases, may disappear altogether.
Premature greying of hair, loss of hair including eyebrows and eyelashes may occur.