Infection: 1  Fungus or yeast cause changes in the color, texture, and shape of the nails. 2  Bacterial infection may cause a change in nail color or painful areas of infection under the nail or in the surrounding skin. 3  Viral warts may cause a change in the shape of the nail or ingrown skin under the nail. 4  Certain infections (especially of the heart ...
Columbia, Maryland. Columbia is a principal city within the Baltimore metropolitan area, located in Howard County, Maryland. It is a planned community consisting of 10 self-contained villages. It began with the idea that a city could enhance its residents' quality of life.
Columbia, Maryland - Basic Facts. The Columbia Census Designated Place had a population of 103,689 as of July 1, 2016. Columbia ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Maryland. See peer rankings below. The primary coordinate point for Columbia is located at latitude 39.2011 and longitude -76.859 in Howard County.