tinea%20unguium
TINEA UNGUIUM
Onychomycosis is a fungal infection of the nail bed, nail plate or both. It is caused by dermatophytes, non-dermatophyte molds and yeast.
Tinea unguium or dermatophytic onychomycosis is a dermatophyte infection of the nail more commonly affecting the toenails than the fingernails.
It is usually asymptomatic and patients first consult for cosmetic reasons.
It is suspected if there are changes in the 3rd or 5th toenail, involvement of the 1st and 5th toenails on the same foot and unilateral nail changes.

Definition

  • Specific onychomycosis (fungal infection of the nailbed, nail plate, or both) caused by dermatophytes
  • Also called dermatophytic onychomycosis; more commonly affects the toenails than the fingernails

Signs and Symptoms

  • Usually asymptomatic & patients first consult for cosmetic reasons
    • Onychomycosis is suspected if there are changes in the 3rd or 5th toenail, involvement of the 1st & 5th toenails on the same foot, & unilateral nail changes
  • Patients may complain of numbness, pain, discomfort affecting manual activities & may cause loss of self-esteem & diminished social interaction
  • May manifest as erythematous swelling of the nail fold (paronychia), separation of the nail plate from its bed
  • Onychomycosis is classified based on route of infection & clinical presentation

Risk Factors

  • Aging, male, peripheral vascular diseases, diabetes mellitus (DM), occlusive footwear, human immunodeficiency virus (HIV), presence of Tinea pedis, immunosuppression, atopy, hyperhidrosis, exposure to individuals w/ Tinea pedis or onychomycosis
Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS Infectious Diseases - Malaysia digital copy today!
Sign In To Download
Editor's Recommendations
Most Read Articles
Tristan Manalac, 12 Feb 2020
Incorporating genotyping of human adenovirus (HAdV) infections in clinical practice may inform risk stratification and treatment decisions, according to a new Singapore study.
Tristan Manalac, 25 Oct 2019
Old age and lower white cell counts are significant risk factors for poor platelet recovery among dengue patients with thrombocytopaenia, according to a recent Singapore study.
14 Feb 2020
A 10-day or 14-day sequential therapy strategy is more cost-effective than a conventional triple therapy in the management of patients with Helicobacter pylori infection, in addition to being more effective in terms of eradication of infection, as reported in a study from Egypt.
Tristan Manalac, 04 Sep 2019
A booster injection of CYD-TDV (Dengvaxia) can generally restore antidengue antibody titres 5 years after a three-dose schedule, according to a new Singapore study.