The evaluation of a paronychia begins with a history and physical exam.

Physical findings in someone with a paronychia include:

• Swelling of the skin next to the nail
• Redness of the skin next to the nail
• Tenderness to the skin next to the nail
• Pus draining from the skin next to the nail
• Ingrown fingernail

Tests are not necessary to make the diagnosis of a paronychia.