1, toenail thickening yellow, in the clinical mainly seen in nail fungal disease. Nail fungal disease is due to various types of fungi, including dermatophytes, yeasts and non-dermatophyte molds caused by nail plate and nail bed infection.

2, the clinical manifestations can be seen in patients with nail folds near the nail plate free, under the nail bed hyperkeratosis, the following can be seen thicker yellow scales, and finally can cause nail peeling and nail plate thickening, and some patients' nails can appear discoloration or fragmentation.

3, change the early time is usually a single nail involved, and long time patients can be infected and involved in the rest of the toenails. Therefore, patients diagnosed with nail fungal disease are recommended to take oral antifungal drugs for 4 to 6 months.