Dysplastic Nevus | Causes of Moles and Treatment | Cosmetology

dysplastic nevus

What is dysplastic nevus?

A dysplastic nevus or atypical mole is a nevus (mole) whose appearance is different from that of regular moles. In 1992, the National Institutes of Health recommended avoiding the term “dysplastic nevus” in favour of the term “atypical mole.” An atypical mole may also be referred to as an atypical melanocyte nevus, an atypical nevus, Clark’s nevus, a melanocytic dysplastic nevus, or a nevus with an architectural disorder.

This often grows to larger than normal moles, and they may have irregular and fuzzy borders. Their colour may not be uniform and may range from a light pink to a very dark brown. It usually starts flat, but the sections may rise above the surface of the skin. See the characteristics of ABCDE and The Ugly Duckling below.

A dysplastic nevus can be found anywhere, but they are more common on the trunk in men, and in calves in women.

There is some debate in the dermatology community about the presence or absence of a “dysplastic”/”atypical” birthmark. Some have argued that the terms “dysplasia” and “atypical” refer only to diagnostic uncertainty, as opposed to biological uncertainty, and that the lesion is either a nevus or melanoma from the start, as opposed to a type of “pre-cancer”; Only the doctor is not sure. Some have also argued that even if such moles are present, studies have shown that clinicians are unable to reliably identify them anyway, which means there is no point even in using the concept.

What causes dysplastic nevus?

Scientists and researchers are still working to understand the causes of atypical moles. It is believed that the reason for their development is a combination of genetic and environmental factors.


A dysplastic nevus is diagnosed after biopsy of a suspicious mole.


On the off chance that you have at least one atypical mole, converse with your dermatologist about the fitting checking project and whether any moles need a biopsy to ensure they are not melanomas. The more abnormal mole features, the higher its risk. Frequent monitoring of these moles is crucial so that if melanoma appears, dysplastic nevus can be detected and treated as soon as possible.

If your doctor identifies a mole as suspicious, or if new moles appear after the age of 40, you may need a biopsy.


Those diagnosed with dysplastic fever have an excellent prognosis. However, if you have a history of dysplastic nevus, you have an increased risk of developing melanoma in the future. Therefore, it is recommended to have regular skin examinations with a dermatologist or cosmetologist.

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