A nail infection, or paronychia, is an infection of the skin that surrounds a fingernail The infected tissue can be tender and painful with swelling Paronychia is considered acute if it lasts less than 6 weeks, or chronic if it lasts longer Cleveland Clinic is a nonprofit academic medical centerFungal infections of the fingernail can cause a yellow to green nail discoloration, thick ridged nails, and fingernail pus In addition, a fungal nail infection can cause the nails to become brittle and even fall off The nails typically change shape and the finger can redden and swell Sometimes, fungal nail infections can cause pain, but Prevention Avoid injuring your nails and fingertips Don't bite or pick your nails Keep your nails trimmed and smooth Avoid cutting nails too short Don't scrape or trim your cuticles, as this can injure the skin Use clean nail clippers or scissors
Paronychia Symptoms Causes Diagnosis And Treatment