The Vandenbos Procedure is a highly effective method that focuses on excision of excessive nail fold tissue without affecting the healthy nail and nail matrix. The Vandenbos Procedure is showing high success rates in eliminating onychocryptosis without altering the normal nail. Another, much less effective, treatment is excision of the matrix, sometimes called a cold steel procedure. Onychodystrophy is a deformation of the nails that can result from cancer chemotherapy which includes bleomycin, hydroxyurea, or 5-fluorouracil. It can include discoloration of the nail, or dyschromia. Onychogryposis, also called "rams-horn nail", is a thickening and increase in curvature of the nail. It is usually the result of injury to the matrix. It may be partially hereditary and can also occur as a result of long-term neglect. It is most commonly seen in the great toe but may be seen in other toes as well as the fingernails. An affected nail has many grooves and ridges, is brownish in color, and grows more quickly on one side than on the other. The thick curved nail is difficult to cut, and often remains untrimmed, exacerbating the problem. Onycholysis is a loosening of the exposed portion of the nail from the nail bed, usually beginning at the free edge and continuing to the lunula. It is frequently associated with an internal disorder, trauma, infection, nail fungi, allergy to nail enhancement products, or side effects of drugs. Onychomadesis is the separation and falling off of a nail from the nail bed.
See also
Hangnail
List of cutaneous conditions
Occupational hazards associated with exposure to human nail dust
Yellow nail syndrome

References
External links

Fungal Nail Infections - explanation covering causes, treatment, and prevention
Links to pictures of Nail Diseases (Hardin MD/Univ of Iowa)
Nail Abnormalities: Clues to Systemic Disease
Links to pictures of Toenail Diseases (Wiggins MD)