Fungal skin infections are caused by various fungi that can affect the skin, scalp, nails and mucous membranes. This page gives general information on common types, signs to watch for, how infections spread, everyday prevention and which specialists can help. Medical assessment is needed for diagnosis and management.
Fungal skin infections arise when fungi such as dermatophytes (tinea), yeasts (for example Candida) or Malassezia grow on skin or appendages. Presentations vary by organism and location — ring-shaped red patches, scaly lesions, white patches in moist areas or nail thickening and discoloration are common patterns.
Common signs include itching, redness, flaking or scaling, cracking, blistering in some cases, ring-like lesions and changes in nail colour or thickness. Scalp involvement may cause hair breakage or local thinning. If signs are new, worsening, or affecting daily function, consult a healthcare professional for assessment.
Fungi can spread by direct skin-to-skin contact, touching contaminated surfaces or sharing personal items like towels or footwear. Warm, moist environments, prolonged damp feet, tight synthetic clothing, communal showers, weakened immunity, obesity and diabetes increase risk. Some species are associated with animals or soil exposure.
Keep skin clean and dry, choose breathable fabrics, change socks regularly, avoid sharing towels or footwear, and use protective footwear in communal wet areas. Trim and care for nails and seek early assessment when symptoms appear. A clinician can advise on tests and appropriate management if needed.
Dermatology (skin and venereal diseases) is the usual specialty for evaluation. Primary care can provide initial assessment and referral; Infectious Diseases clinics may be involved in complex or systemic cases. Seek urgent medical attention via emergency services if you have rapidly spreading skin damage, high fever, severe pain, or signs of systemic illness.
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