There are many reasons toenails can become thickened, discoloured, and painful. Establishing the root cause is essential for successfully managing this problem. 

Fungal infections and ingrown toenails will always require professional treatment. Tight toenails (often with corns underneath) and damaged toenails due to trauma, chemotherapy treatment and/or thickened cuticles can be treated at home by regularly hydrating the nail and surrounding skin.