Risk of paraneoplastic nevus or hyperpigmentation

  At present, according to your description, the size and number of moles do not need to be treated. However, all “pigmented moles” have two characteristics: firstly, if they grow on a site that is repeatedly stimulated by friction, they will gradually increase in size, and the site where your pigmented mole is growing will be stimulated by defecation and wiping, and may further increase in size; secondly, if they increase in size to a certain extent, they may progress to melanoma or even become malignant. Therefore, you need to observe dynamically. If you feel that these two pigmented moles have increased significantly within six months to one year, it is better to remove them surgically.