Intradermal nevi are generally benign, but malignant changes cannot be ruled out. Intradermal nevus is a type of nevus cell nevus that is located within the dermis and grows slowly. Nevus, also known as pigmented nevus or melanocytic nevus, is a common benign skin tumor in humans of melanocytic origin. Depending on the location of the nevus cells within the skin, they can be categorized into three types: junctional nevi, compound nevi and intradermal nevi. Intradermal nevus generally does not require treatment, but nevus that occurs in friction-prone or injury-prone areas such as palmoplantar, waistline, armpit, groin, etc. should be considered for surgical excision, and after excision, pathological examination is required. Although the chance of malignant transformation of intradermal nevus is very low, the possibility of malignant transformation cannot be excluded. If the nevus is suspected to be malignant, one should go to a regular medical institution and actively cooperate with the relevant diagnosis and treatment in order to avoid delaying the condition.