Nevus, medically known as nevus cells or melanocyte nevus, are skin manifestations caused by the increase of melanocytes in epidermis and dermis. Mole removal is a method to remove moles through medical equipment and technology, so as to obtain beautiful skin. Dermal pigmented nevus is often divided into three types according to the level of nevus cells in the skin: borderline nevus, intradermal nevus and mixed nevus. In addition, according to the clinical characteristics, there are giant nevus and blue nevus. The exact nature and type of nevus are finally diagnosed by histological examination. Be more careful about moles that grow on parts of your body that are easy to rub or get hurt, and be careful that they don't become murderers who ruin your face.
The treatment of various pigmented nevus on the body and face, such as Ota nevus, is as follows:
1, initially identified as borderline nevus, or with precursor symptoms of malignant transformation, such as color change, enlarged lesion range, bleeding, inflammatory changes, etc.
2, a large range, rough surface, nodules, long hair and other effects on the appearance.
Preoperative preparation
1. The most important thing to prepare before mole removal is to know our skin constitution through examination. If you have scarred skin or sensitive skin,
2, female friends, must avoid the physiological period.
Be sure to keep healthy before the operation, and don't stay up late to avoid getting sick.
Don't put on makeup before the operation, we must clean our skin carefully.
5. Don't eat spicy food in preoperative diet, and don't eat drugs containing aspirin.
Postoperative attention
1, when there is a local wound, you can't get wet;
2. It will scab after operation and gradually fall off after 5-7 days; After scabbing, fresh tissue is delicate and can't stand the sun, so pay attention to sun protection. It is recommended to wear sunscreen when going out, especially in summer.
3, after a month and a half should go back to the hospital for review;
4. Pay attention to sun protection.
5. No make-up, no drinking, no mask and no telangiectasia during laser treatment. Pay attention to sun protection, otherwise temporary pigmentation will occur.
conventional method
Electric combustion method
Methods: The principle of electric heating and high temperature burning was used to remove the nevus caused by burning and carbonization.
Advantages: simple operation.
Disadvantages: it is difficult to control the degree of burning, leaving scars easily and unacceptable.
Indications: It is effective for superficial combined nevus and deep and prominent combined nevus with a diameter of 0.3-0.5 cm.
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Methods: The pathological tissues around the nevus were surgically removed.
Advantages: this method can choose to partially or completely remove the diseased tissue, and different treatment methods can be carried out according to the nature of hydatidiform mole.
Disadvantages: it is difficult and takes a lot of time. This method is rarely used in general moles.
Indications: large and prominent nevus with a diameter greater than 0.6 cm.
chemical corrosion
Methods: Generally speaking, 50% triazole carbonic acid solution or alkaline reagent, such as sodium hydroxide, is suitable for nevus.
Advantages: Triazole carbonic acid solution is not easy to burn the skin and cause scars; Alkaline solution is corrosive and may take effect soon.
Disadvantages: triazole carbonic acid solution acts slowly, and the deeper mole may be 10 times; Sodium hydroxide is not easy to control the corrosion depth, and it is easy to cause deep scars.
Indications: Nevus with light color and light position.
freezing method
Methods: Cryopreservation with liquid nitrogen, high-speed freezing of pigmented nevus tissue, formation of water sores around pigmented nevus cells, and then spontaneous shedding.
Advantages: The depth of the injury is relatively easy to master, usually once, and it is not easy to cause obvious scars.
Disadvantages: large and thick moles can only be taken out after repeated freezing, and special instruments must be equipped, and the doctor's skills are also very important. Dermatology is not used for the treatment of moles because it is not easy to control the depth and often causes injuries.
Indications: Flat nevus with a diameter of 0.3-0.5 cm, including freckles.
Laser Dot mole
Principle: The huge energy emitted by laser instantly acts on the pigment tissue, and the pigment is crushed, decomposed, swallowed by macrophages and excreted, thus achieving the purpose of removing pigment.
Methods: Shallow nevus can be removed by laser, such as ruby laser and erbium laser. If it is a large and deep mole, it should be removed by carbon dioxide ultra-pulse laser.
Advantages: Laser nevus removal can control the best spot size and depth, and it is not easy to leave scars and infections.
Disadvantages: no shortcomings, accepted by most people, popular.
Indications: Most of them can be used, including deep and shallow nevus.
Excision and flap transfer:
It is suitable for patients with pigmented nevus whose area is small, but it is difficult to suture directly after excision, and the surrounding normal skin tissue is loose. It can be used for wound transfer and repair after excision of pigmented nevus, and there is no obvious secondary deformity by direct suture of donor site. It is also suitable for wound repair after excision of various plaque lesions on the face. According to the characteristics of wound and surrounding skin tissue, the following local flaps can be selected for transfer and repair.
An unsuitable person
1, patients with skin cancer;
2. People who have received or may receive sunlight;
3. Photosensitive skin and people who have used photosensitive drugs;
4. Patients with scar constitution and skin infection at the site to be treated;
5. Patients with epilepsy, diabetes and patients with bleeding tendency;
6. Pregnant women.
Method introduction
The chemical burn of 1 mainly depends on the corrosiveness of liquid medicine to the skin, which makes the skin with moles slowly necrotic and then fall off on its own. The principle of liquid nitrogen is the same. Nitrogen acts on the nevus, which makes the diseased skin necrotic. Compared with others, the treatment price is very cheap, but it can't show the effect immediately, and the recovery time is very long, and the wound healing takes a long time. This method is difficult to grasp the depth of mole removal, which will lead to unreasonable mole removal and will rebound after a period of time. It is suggested that patients should never use this method to remove moles, especially those with scars. It is recommended to go to a professional plastic surgery hospital for in-depth communication.
2 Laser gasification, mainly because the laser can generate huge energy, vaporize and dissolve the pigment in the mole, pulverize it into powder, and then gently wipe it with a cotton swab, and the mole will fall off. It's easy to get rid of moles in this way, and it works quickly. After gasification, the mole will be wiped off with a special cotton swab, and the manual control is particularly strong. You need to know the depth of mole removal very accurately, and then see if there are any moles left. Usually, many moles will not leave any traces after laser removal, unless the moles are particularly large, which will leave a small pit, but it is almost invisible to the naked eye. However, there may be a rebound, so laser mole removal should be done several times.
Matters needing attention
Note 1: Do not touch the treated area with water, and take the medicine as prescribed for one week on time.
Note 2: According to the different conditions of each patient, different times of follow-up visits may be needed. Please follow the doctor's advice for timely follow-up treatment to ensure the curative effect.
Note 3: For customers with scab, please let the scab skin grow and fall off naturally, and never tear it off by yourself.
Note 4: Please do not expose the laser-treated parts to the sun to reduce or avoid the occurrence of color deposition.
Note 5: No matter what kind of disease, please don't eat too spicy food within 1 week after receiving laser treatment.
Note 6: Please do not accept exfoliation, microcrystal grinding and other treatments during the treatment. If necessary, please ask your therapist's permission.
Note 7: Daily skin care products can be used normally after 1 week. For functional products, please seek the consent of the therapist before use.
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