What do pigmented nevus look like?
Nevus are common benign tumors on the skin that are formed by the accumulation of melanocytes. They can appear anywhere on the body and come in many shapes, sizes, and colors. In recent years, with the improvement of health awareness, the attention of pigmented nevus has gradually increased. This article will introduce in detail the characteristics, types and related precautions of pigmented nevus.
1. Basic characteristics of pigmented nevus
Nevi usually appear as dark spots or bumps on the skin that range in color from light brown to black. The following are common characteristics of pigmented nevus:
| Features | Description |
|---|---|
| color | light brown, dark brown, black or blue |
| shape | Round, oval or irregular shape |
| size | Ranging from the size of a pinhead to several centimeters |
| surface | flat, raised or rough |
2. Types of pigmented nevus
According to the shape and growth characteristics of pigmented nevi, they can be divided into the following types:
| Type | Features |
|---|---|
| Junctional nevus | Usually flat and darker, more common in children and teenagers |
| compound nevus | Slightly raised, varying shades of color, more common in adults |
| intradermal nevus | The bulge is obvious and the color is lighter. It is more common in middle-aged and elderly people. |
| congenital nevus | It is present at birth and varies in size. Larger ones are at risk of malignant transformation. |
3. Precautions for pigmented nevus
Most nevi are benign, but some can become malignant and develop into melanoma. The following are situations to be wary of:
| warning signs | Description |
|---|---|
| asymmetrical | The shape of the mole is asymmetrical, with one side different from the other |
| Irregular edges | The edges of the mole are blurred or irregular |
| color change | The color of the mole is uneven or suddenly darkens |
| diameter increases | The mole is more than 6 mm in diameter |
| itching or bleeding | The mole is itchy, painful, or bleeding |
4. Suggestions for treatment of pigmented nevus
If you find any of the above abnormal changes in a pigmented nevus, you should seek medical examination promptly. Your doctor may recommend the following treatments:
| Processing method | Applicable situations |
|---|---|
| observe | Small moles without obvious abnormalities should be reviewed regularly |
| surgical resection | Suspicious malignant transformation or mole that affects appearance |
| laser treatment | Small superficial moles need to be operated by a professional doctor |
5. How to prevent malignant transformation of pigmented nevus
The key to preventing malignant transformation of pigmented nevus is to avoid excessive sun exposure and conduct regular examinations:
1.Sun protection:Ultraviolet rays are an important factor in causing malignant transformation of moles. You should apply sunscreen and wear sun-protective clothing when going out.
2.Avoid friction:Avoid frequent rubbing or irritation of moles, especially moles located in areas prone to friction (such as palms and soles of feet).
3.Regular self-examination:Check your moles once a month and note changes in size, color, and shape.
4.Professional inspection:Get an annual dermatology exam, especially if you have multiple moles or a family history of them.
Conclusion
Pigmented nevus is a common skin phenomenon and in most cases is nothing to worry about. However, understanding its characteristics and potential risks can help detect abnormalities early and handle them promptly. If you have any concerns about moles on your body, it is recommended to consult a professional doctor as soon as possible.
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