psoriatic lesions where new nail cells are made.
Discoloration
PsA can cause nail discoloration. This discoloration may cause your nails to look oil-stained. The discoloration may have a pink or purple tint.
The discoloration is caused by a buildup of cellular waste beneath your nail.
Red spots
Another sign of PsA occurs in the whitish half-moon near the base of your nail.
Some people with PsA develop red spots in this area.
These red spots may indicate the development of new blood vessels.
Crumbling or flaking
People with PsA may have nails that appear to be:
- Crinkling up
- Crumbling
- Flaking off layer by layer
The nail’s crumbling and flaking can happen because of inflammation or too many skin cells in your nail bed.
Ridges
People with PsA sometimes develop vertical ridges running up and down their nails. These look and feel like raised lines.
Splitting with purple spots
Splitting often goes hand in hand with ridges. Your nail may