7. Stiff And Painful Joints
Entheses is where a tendon or a ligament connects to the bone. If this becomes inflamed it’s called enthesitis and can cause new bone tissue to form. A bone spur is an example. This newly-formed tissue can inhibit movement and be painful. If you experience joint stiffness in any joint, especially after being inactive, take it as a warning sign.
8. Fingernail And Toenail Pitting
This is one of the less-common symptoms. When psoriatic arthritis affects a joint in the fingertips or toes, it can lead the nails to discolor or pit. Pitting is when small depressions—pits—form in the nail. Sometimes, the nail can fall off. This symptom is more common among males and is a tell-tale sign of psoriatic arthritis.