What does paronychia mean?
Paronychia is a medical term for inflammation, often with infection, of the skin or soft tissue surrounding a fingernail or toenail. It commonly appears as a red, painful, swollen nail fold and may form a small abscess, particularly after a hangnail, minor trauma, or nail treatment. The word is used mainly in clinical and public-health contexts, where it distinguishes a nail-fold problem from conditions affecting the nail plate itself, such as onycholysis or fungal infection. Although people may use the term loosely for any sore around a nail, its precise meaning is narrower. Recognizing paronychia matters because early care can reduce pain and prevent an infection from spreading. The name is also revealing: it literally describes a condition beside the nail. It is a useful example of a specialized medical word whose compact form conveys both location and pathology.
nounInflammation or infection of the skin surrounding a fingernail or toenail, often with pain, redness, swelling, and sometimes an abscess.
- Inflammation or infection of the skin surrounding a fingernail or toenail, sometimes accompanied by an abscess.
"A red, tender swelling beside her thumbnail was diagnosed as paronychia."
"A red, tender swelling beside her thumbnail was diagnosed as paronychia."
"The clinician drained the paronychia and advised the patient to keep the affected finger clean."
The plural is uncommon; in clinical prose, cases of paronychia or multiple episodes may sound more natural.
"The clinic treated two paronychias during the same week."
A sore beside the nail has a name that literally points to its location: para- means “beside,” and onyx means “nail.”
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of paronychia
The term comes from Greek paronychia, built from para- “beside or near” and onyx, with genitive onykhos, meaning “nail.” Its components therefore refer to a condition around or beside the nail, a meaning preserved in modern medical usage. English borrowed the Greek-derived medical term with its sense of inflammation around a nail; related technical words such as onychosis and onychomycosis continue the onyx-derived family.
Related word forms
How paronychia is actually used
This is primarily a clinical term rather than an everyday expression. It may affect either fingers or toes but is most commonly associated with the fingernail. In nonmedical usage, the word is sometimes applied loosely to any infection around a nail, though its precise meaning is narrower.
Easily confused with paronychia
Paronychia affects the tissue around the nail, whereas onychomycosis is a fungal infection of the nail itself.
A felon is a deep abscess in the padded tissue of the fingertip, while paronychia is centered on the skin surrounding the nail.