What causes psoriasis

summary

My friend is suffering from psoriasis. There are several white plaques on his arm. When these plaques are serious, there will be peeling symptoms. Patients with psoriasis should be treated as soon as possible. Now I will tell you the causes of psoriasis.

What causes psoriasis

Reason 1: infection is one of the important causes of psoriasis, especially in children. According to reports, psoriasis patients, suffering from chronic tonsillitis accounted for more than 90%, followed by acute tonsillitis in patients with psoriasis accounted for 49.5%.

Reason 2: immune function disorder. Immunological studies have confirmed that patients with psoriasis have humoral immune disorder. T suppressor cells in patients' blood are significantly decreased, T helper cells are increased, cellular immune function is low, lymphocyte transformation rate and natural petal formation rate are decreased, and skin delayed hypersensitivity test is weakened.

Reason 3: the important pathophysiological change of psoriasis is the acceleration of epidermal cell proliferation, which shortens the replacement time of epidermal cells. The replacement time of normal epidermal cells is 26-28 days, while that of psoriasis lesions is 3-4 days.

matters needing attention

Female patients with menstruation and pregnancy, the majority of patients with menstruation and pregnancy improved, skin lesions improved more occurred within 3-6 months after pregnancy, and after delivery, the majority of patients worsened, which may be related to increased corticosteroid secretion during pregnancy. ?