How to Reduce Thick Toenails

Thick toenails are harder to cut and may become crumbly, discoloured, curved, or uncomfortable in shoes. Thick toenails need gentle trimming and a diagnosis before treatment, because fungus, psoriasis, injury, and pressure can look similar.

Nail fungus may cause thickening with yellow or white colour and debris beneath the nail; see [Nail Fungus](/conditions/nail-fungus/). Nail psoriasis can produce pits, lifting, or an irregular surface; see [Nail Psoriasis](/conditions/nail-psoriasis/). Repeated pressure, a past injury, skin disease, or less commonly another nail disorder can also change growth.

A clinician may examine the nail and test a clipping or scraping before prescribing treatment. That step matters because antifungal treatment will not correct thickening caused by trauma or psoriasis.

Keep feet dry, change socks when damp, choose shoes with room around the toes, and trim nails after bathing when they are softer. Cut across rather than deeply down the sides, and file sharp edges. Do not share nail tools, and disinfect tools after use.

If fungus is confirmed, options may include [Oral Antifungal Treatment](/treatments/medical-dermatology/oral-antifungal-therapy/) or, in selected cases, [Laser Treatment For Nail Fungus](/treatments/laser-and-energy/laser-nail-fungus-treatment/). Treatment choice depends on the number of nails involved, severity, health conditions, and medicines.

Arrange an assessment for a painful nail, repeated lifting, drainage, a dark mark that changes, or thickening that affects walking. Seek prompt care for spreading redness, warmth, swelling, or fever. People with diabetes, reduced circulation, or reduced sensation should have foot changes assessed rather than cutting aggressively at home.

Ask whether the nail needs testing, which causes fit its colour and shape, how to trim it safely, how long treatment may take, and whether your medicines or health conditions affect the available options.