The most common types of warts are common warts and flat warts, commonly known as “wart”, which are very common clinically. The only host of HPV is the human being. When in contact with patients or objects contaminated by patients, the virus may be inoculated into the skin with minor damage, resulting in infection; and self-transmission is also very common. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. 2, flat warts: the most common in the face and back of the hand, arm. Theoretically, about 75% of patients can get spontaneous regression within 3 years. The risk of self-inflicted infection, so it is advisable to treat the lesions when they are small and few. There are no specific antiviral drugs for HPV, and treatment is mainly to destroy and remove the visible lesions. Common methods include cryotherapy, laser therapy, electrocautery, and topical medications. (The treatment of condyloma acuminata is not detailed here) 1, cryotherapy: cotton swabs with liquid nitrogen repeatedly contact the lesions, the use of freezing – melting cycle to local cell necrosis. The pain is tolerable during treatment, and after treatment there may be local redness and blisters. Over a period of 1-2 weeks, a scab will form on the surface of the lesion and fall off. A follow-up visit is required after the scabs have fallen off to determine if retreatment is needed. Larger lesions and lesions on the palms of the hands and feet usually require multiple treatments. There may be localized pigmentation after treatment that will slowly fade over a period of months until it approaches the color of the skin. Overall it is the most convenient, fast and safe treatment method. 2, laser, electrocautery treatment: both use high temperature to make the lesions charred and necrotic. Before treatment, local anesthesia is required, and after treatment, there is a trauma that needs attention to prevent secondary bacterial infection. 3, topical drug treatment: commonly used are salicylic acid preparations, retinoic acid preparations (such as retinoic acid cream, tazarotene gel, etc.), fluorouracil ointment, etc.. The use of these drugs is the keratin exfoliation, erosion effect. They are indicated for smaller lesions that do not have a thick surface keratin layer and have a long treatment period, which may take weeks to months; care needs to be taken to protect the normal skin around the lesion when using them, for example, petroleum jelly can now be applied to the normal skin. There may be maceration, irritation, and erosion of the lesion and surrounding skin, and it is not effective for larger lesions with a thicker cuticle. The so-called “corns” contain the above ingredients, and it is not recommended that patients use “corns” on their own, as it is common that the lesions are not treated, but cause damage to the surrounding normal tissue. Topical use of “fig juice” is also the use of corrosive effect. 4, other treatment methods: immunomodulators, antiviral drugs, such as interferon, BCG polysaccharide nucleic acid, thymidine, transfer factor, etc., clinical studies have not shown consistent efficacy, not recommended as the first-line treatment. V. How to prevent and precautions: 1. Avoid going to some easily infectious occasions, such as pedicure, public bathroom rubbing. 2, deal with the skin breakage. For example, periapical warts are commonly found in children who often grow meat spikes or bite their nails, it is because the skin is broken and inoculated with the virus. 3, common eyelid multiple filiform warts patients have the habit of rubbing their eyes, the neck multiple filiform warts patients have the habit of rubbing the bath, so if they have warts, do not stimulate, friction on their own. 4, multiple plantar warts patients commonly combined with sweating or ringworm, because sweating will lead to impregnation, ringworm will lead to blisters, cracking, etc. This is more likely to lead to plantar warts themselves infectious, so to keep the feet dry, while treating ringworm.