Everyone Healthy Library
Fungal Nail Infection (Onychomycosis)
Sign or symptom reference page from the Everyone Healthy database.
! Seek urgent medical care if warning signs appear
A symptom can have many possible causes. Some symptoms need urgent assessment, especially when they are severe, sudden or rapidly worsening.
Get urgent medical care now if there is any severe, sudden, rapidly worsening or worrying symptom, especially:
- chest pain, pressure or pain spreading to the arm, jaw or back
- trouble breathing, blue lips, severe wheeze or choking
- stroke-like symptoms such as face drooping, arm weakness or speech trouble
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- severe bleeding, black stools, vomiting blood or major injury
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- severe abdominal pain, severe headache, stiff neck or sudden vision change
- signs of severe dehydration, sepsis, high fever with worsening illness, or symptoms in a baby/young child that concern you
Full information
Fungal Nail Infection (Onychomycosis)
Onychomycosis is the fungal infection of nails, either on the fingers or the toe (although toenails are more common). It is the most common nail disorder, affecting more than 1 in 20 people.
Symptom classification
Body areaArms
Body areaFingernails
Body areaHands
Conditions linked to this sign/symptom
2Drugs where this is listed as a side effect
0No drug side-effect links are listed yet.