Bruising in the toenail, the specific choice of treatment plan is mainly based on the specific cause of the disease. Common causes include trauma, infection, subnail tumor, coagulation dysfunction disease, etc. Specific treatment options include conservative treatment, anti-infective treatment, surgical treatment and so on. 1. Trauma: after trauma will lead to nail bed capillary rupture, causing local bruising, does not need too much intervention, most of them can be recovered by themselves; part of the bruising is obvious can do local incision, for the drainage of bruising. 2. Infection: toenail fungal infection caused by gray toenail, will cause capillary growth, local rupture will lead to bruising, the application of antifungal drugs (terbinafine hydrochloride, etc.) treatment is the main program. There may also be subnail bruising leading to bacterial infection, which requires surgical incision and sterilization, drainage, and also need to take amoxicillin, cefaclor and other antibiotics to prevent and control infection. 3. Subnail tumor: some of the nail beds have neoplastic lesions, such as onychomycotic nevus, etc., which can also cause local hemorrhage, resulting in bruising, and need to do local excision to prevent malignant changes. 4. For coagulation dysfunction diseases, such as hemophilia, various thrombocytopenic purpura, etc., need to treat the primary disease treatment. Toenail bruises accompanied by significant pain, activity is limited, we must consult a doctor in a timely manner, under the guidance of the clinician standardized treatment, not blindly use their own medication.