About Redding Dermatology , Dr. Kraffert, Our Website, and Our Office. Nail fungus is a common condition that usually presents in mid-life or later years. Generally, nail fungus involves the toenails. It often presents as a yellowing or crumbling or thickening of the nails, especially at the edge nearest to the area where the nails are cut. This sometimes results in discomfort, but usually is painless.
Nail fungus is unsightly.
Although the large toenails are most frequently involved, other toenails can be involved as well. It is not usual for several toenails to be fairly severely involved and other nails not to be involved at all. It is also frequent to see one foot involved and the other foot completely clear of the infection. Sometimes fingernails are also involved and they have a similar appearance. Frequently, two feet and one hand will be involved with nail fungus and the other hand will be uninvolved.