Fingernail ridges are raised lines or grooves that affect one or more fingernails and may run vertically or horizontally.

A 37-year-old White woman presents to the clinic for a routine skin examination. The clinician notes dystrophic nails on both ...

Vitamin C serves as an antioxidant and is essential for your body’s collagen production. Collagen helps with the growth of ...

Longitudinal ridges on one or two nails can be due to trauma to the nail plate. However, this is unlikely to be the cause if all your nails are affected! It's also very unlikely to be due to a ...