Foot cover pain, that is, toenail cover pain, clinical general consideration is due to trauma or gingivitis, need to be analyzed specifically. 1. Trauma: if the patient’s toenail cover is subjected to collision, extrusion and other external injuries, resulting in soft tissue contusion under the nail plate, the patient will experience pain, usually accompanied by swelling, bruising and so on. 2. Nail groin infection: due to excessive nail trimming, tearing barbs, long-term contact with irritants, etc., affecting or destroying the skin barrier around the nail, resulting in bacterial infection. It is a kind of tissue infectious inflammation caused by microbial infection. Clinical symptoms are mainly characterized by redness, swelling and pain, and pus may appear in severe symptoms. Patients may feel pain in the foot cap. It is recommended that patients seek timely medical treatment, confirm the cause of the disease under the guidance of the doctor, and carry out targeted treatment.