The nail disease paronychia is an often tender bacterial or fungal infection where the nail and skin meet. It can start suddenly (acute paronychia) or gradually (chronic paronychia).

Pus is usually present, along with gradual thickening and browning discoloration of the nail plate. Paronychia around the entire nail is sometimes referred to as runaround paronychia. Chronic paronychia is most often caused by a yeast infection of the soft tissues around the nail but can also be traced to a bacterial infection. Individuals who work with their hands in water, such as health care workers and food processors, are quite prone to this type of infection.

Prosector's paronychia is a primary inoculation of tuberculosis of the skin and nails, named after its association with prosectors, who prepare specimens for dissection.

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Symptoms | Occupational diseases | Dermatology | Tuberculosis

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