Toenails that grow thicker over time likely indicate a fungal infection, also known as onychomycosis.
Thick Toenails
Effective Treatments for Toenail Fungus - GoodRx
Do you have Thick, Discoloured Toenails?
How to trim thickened toenails - Mayo Clinic
Thick Toenails, Clinical Blog
How to trim thickened toenails - Mayo Clinic
Thickened Toenails - The Foot People
3 Ways to Fix Thick Toenails - wikiHow
Thick Toenails – Symptoms, Diagnosis and Treatment – Da Vinci Foot & Ankle
Thickened Toenail - Perfect Skin Solutions
Types of Toenail Fungus: Pictures, Symptoms, Treatment