The condition of blackened little toenail is considered to be related to long-term extrusion, onychomatous mole, onychomelanoma and other factors.
1. Long-term extrusion: for example, if the patient wears shoes with too small a size, it may cause long-term extrusion to the area of the little toe, which may cause under-nail hemorrhage, and then there will be the symptom of black little toenail.
2. Nail nevus: Nail nevus belongs to a kind of benign tumor, the cause of which is still unclear, may be due to local trauma, systemic pigmented diseases, subnail hemorrhage and so on, resulting in a brownish-black stripe on the nail plate, thus causing the symptom of blackened little toenails.
3. Nail melanoma: small toenail black situation, also can not be ruled out due to subnail melanoma, which belongs to the malignant disease, the early symptoms are not very obvious, the later will be due to the malignant stimulation of the tumor, resulting in aggravation of the disease, and even distant metastasis.
After the symptoms of black toenails appear, the patient should pay great attention to the need to cooperate with the doctor to improve the relevant examination to determine the cause and then do the treatment.