Can psoriasis cause skin cancer

Can psoriasis cause skin cancer? Psoriasis is difficult to cure and is prone to recurrence, so it is called "immortal cancer"! Will it cause skin cancer? Many patients have this question. Although psoriasis and skin cancer have common mechanisms of disease development, according to research and investigation, psoriasis itself does not affect or induce the occurrence of skin cancer.

The types of skin cancers that occur in psoriasis patients mainly include Bowen's disease, squamous cell carcinoma, basal cell carcinoma, arsenic keratosis, Kaposi's sarcoma, etc. Some skin cancers occur after PUVA, arsenic treatment, or after external application of coal tar, pine distillate oil, and systemic application of immunosuppressants, while others have no obvious cause.

Regarding the incidence of skin cancer in psoriasis patients after PUVA treatment, the general view is that PUVA does not increase the incidence of skin cancer. Although the incidence of skin cancer in psoriasis patients treated with PUVA is slightly higher than that in normal people, there is no significant difference. The topical drugs commonly used to treat psoriasis, such as coal tar and pine distillate, are basically safe.