Melanocytic nevi: What are they and how to identify them?
Melanocytic nevi are commonly known as moles. They are benign skin growths that occur when melanocytes, the cells that produce skin pigment, grow in clusters instead of being spread throughout the skin. Melanocytic nevi can range in size, shape, and color.
Types of Melanocytic nevi
There are three types of melanocytic nevi:
- Common nevi: These moles are usually brown, round or oval, and can appear anywhere on the body. They typically appear during childhood and adolescence, and their numbers and size tend to increase during puberty.
- Dysplastic nevi: These moles have an irregular shape, color, and border. They can be larger than common nevi and have a higher risk of developing into melanoma, a type of skin cancer.
- Congenital nevi: These moles are present at birth or appear shortly after. They can be small or cover a large area of the body. Larger congenital nevi have a higher risk of developing into melanoma.
Identifying Melanocytic nevi
To identify melanocytic nevi, you should look for the following features:
- Color: Most moles are brown or black, but they can also be red, pink, or skin-colored.
- Shape: Most moles are round or oval, but they can also have an irregular shape.
- Size: Most moles are smaller than a pencil eraser, but they can also be larger.
- Border: Most moles have a well-defined border, but they can also have an irregular border.
- Texture: Most moles are smooth, but they can also be raised or flat.
When to see a doctor?
You should see a doctor if you notice any changes in your moles, such as:
- Changes in size, shape, or color
- Bleeding or itching
- Crusting or oozing
- Pain or tenderness
If you have a dysplastic nevus or a large congenital nevus, your doctor may recommend monitoring or removal of the mole to reduce the risk of developing melanoma.
Conclusion
Melanocytic nevi are common skin growths that are usually benign, but some types have a higher risk of developing into melanoma. To identify melanocytic nevi, you should look for changes in