What should you know about deformed thick toenails?

A thick toenail may become yellow, white, brown or opaque, with crumbly material underneath or an irregular surface. It can curve, lift from the nail bed or press against footwear. Nail Fungus is one possible cause, particularly when several nails change or the skin between the toes is also scaly, but appearance alone cannot confirm it.

Nail Psoriasis can produce pits, separation, discolouration or thick debris and may occur with psoriasis elsewhere. Prior trauma, tight shoes and repeated impact can also permanently alter the growing nail. A clinician may inspect the nail and take a sample before prescribing antifungal medicine, because treatments for different causes are not interchangeable.

Keep feet clean and dry, change damp socks, choose footwear with enough room for the toes and trim nails straight across when they are manageable. Do not dig under the nail or share clippers. Photographing the nail over time can help show whether the change is spreading or growing out.

Arrange a dermatology or primary-care assessment if the change persists, affects walking or involves several nails. Depending on the diagnosis, options may include Oral Antifungal Treatment or Laser Treatment For Nail Fungus, but a clinician should confirm whether fungus is present and check for medicine interactions or health conditions that affect treatment choices.

Seek prompt care for increasing redness, warmth, swelling, drainage, severe tenderness or an open sore around the nail. People with diabetes, reduced circulation or reduced sensation should arrange assessment early for any foot or nail injury. A new dark streak, pigment extending onto nearby skin, bleeding or a non-healing area also needs medical review.

Ask whether the nail needs laboratory testing, what causes are being considered, how long treatment may take as the nail grows, and how to protect the surrounding skin. If medication is suggested, ask about interactions, monitoring and what improvement should look like.