Patients with gray nails can be treated with drugs, surgery and physical methods. 1. Drugs: Oral itraconazole, fluconazole and other drugs, or topical amorolfine, cyclopamine and other drugs, which are antifungal drugs, can play a role in inhibiting the role of fungi, so as to achieve the therapeutic effect. 2. Surgery: mainly includes nail extraction or nail removal. Through direct surgery to remove the diseased nail, remove the lesion, to achieve the purpose of treatment. 3. Physical: For superficial mild gray nails, laser treatment can be chosen, laser has the characteristics of high targeting and high energy, which can make the diseased nails locally receive high density energy and have certain inhibition effect on the pathogenic bacteria. It is recommended that patients with gray nails go to the hospital in a timely manner, and follow the doctor’s instructions for treatment, to avoid delaying the condition.