Yes, Psoriasis do cause fingernails and toenails diseases. In fact it is quite common and more than half of the Psoriasis patients are affected by it. The nails start changing around the plates and the area surrounding the nails. Sometimes they affect a single nail which eventually spreads on the rest of the nails including fingers and toes while at times they occur on all nails at once. Some of the symptoms that may occur visible to you are yellow colored patches under the nail plates; nails may look pitted due to the absence of keratin. Apart from this, thickening of nails that leads to separation of nails is commonly seen in the people affected by Psoriasis on fingernails and toenails. Beau lines appear on the edges of the nails and also crumbling of the nail plate.

There are several treatments available to controlling these diseases. However it depends on the level of damage Psoriasis has caused to your nails. The treatment will be given according to the seriousness of the condition. There are also home remedies and other alternative therapies that will help in curbing the problem caused by Psoriasis to your nails. Check with your doctors so that they can help you with Psoriasis related diseases.