First of all, keep in mind that nail psoriasis won’t necessarily show up on all 20 of your nails at once. According to Dr.

A systematic review revealed that patients with psoriasis have a significantly higher prevalence of onychomycosis than those without psoriasis.

More than half of patients with fingernail psoriasis achieved complete fingernail clearance after 68 weeks of guselkumab treatment.

Knowing which kind of psoriasis you have helps you and your doctor make a treatment plan. Most people have only one type at a time. Experts believe psoriasis is an autoimmune disease.