Rheumatoid Arthritis Support Group
Rheumatoid arthritis is a chronic, inflammatory, multisystem, autoimmune disorder. It is a disabling and painful condition which can lead to substantial loss of mobility due to pain and joint destruction. The disease is also systemic in that it often also affects many extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and...
Here's the rub: nails are skin and most people who don't have psoriasis with skin lesions/scales will have some striations/ridges in their finger/toe nails from time to time. The ridges go in the direction of the finger.
Have an HLA-B27 test done. Most people with Psoriasis or PsA test positive for that.
The treatment for PsA is the same as it is for RA.
A rheumatologist should be able to differentiate PsA from RA on the basis of the location of finger nodules [if present].
I walk like Frankenstein morning noon and night - ha.