What are the best methods to remove moles without leaving scars?

In general, "wuzi" refers to pigmented nevi. There is no such thing as the best method for removing pigmented nevi without scarring. Pigmented nevi can be removed through methods such as electrocautery, cryotherapy, laser treatment, surgical excision, or photorejuvenation, which may also help reduce the risk of scarring. It is recommended to perform these procedures under the guidance of a qualified physician to ensure safety and proper technique. Specific analyses are as follows:

1. Electrocautery

Electrocautery uses heat generated by high-frequency electric current to coagulate and destroy nevus cells, thereby eliminating the pigmented nevus. The typical reference cost is 300–1000 yuan per session. Improvement is generally visible within 2–4 weeks after the procedure, although discomfort such as pain and redness may occur.

2. Cryotherapy

Cryotherapy uses the extremely low temperature produced by liquid nitrogen to freeze and destroy pigment cells, thus removing the pigmented nevus. The typical reference cost is 2000–4000 yuan per session. Noticeable improvement usually appears within 2–3 weeks, but side effects such as local redness and pain may occur.

3. Laser Treatment

Laser treatment uses laser energy to rapidly expand and fragment pigment particles, which are then cleared by phagocytic cells, effectively removing the pigmented nevus. The typical reference cost is 500–1500 yuan per session. Improvement is usually seen within 7–15 days, though complications such as infection or pain may occur.

4. Surgical Excision

Surgical excision involves completely removing the pigmented nevus via surgery followed by suturing to promote skin healing. The typical reference cost is 500–2000 yuan per session. Improvement is generally observed within 2–4 weeks, but possible adverse reactions include infection and bleeding.

5. Photorejuvenation (Intense Pulsed Light, IPL)

Photorejuvenation uses broad-spectrum colored light to break down subsurface pigmentation, remove pigmented nevi, and stimulate collagen regeneration to improve skin texture. The typical reference cost is 1000–3000 yuan per session. Improvement is typically noticeable within 1–2 weeks, although side effects such as dryness and swelling may occur.

During skin recovery, it is important to keep the skin clean and dry, protect against sun exposure, and avoid using skincare products containing irritating ingredients to prevent interference with healing.