由 home-healthhaven 
Moles are often described as small skin growths that can show up anywhere on your body. They form when skin cells group together rather than spreading out evenly. Moles might be flat or raised above the skin’s surface. When a mole is harmless, it usually has a uniform color and clear boundaries, so there’s generally nothing to worry about. However, it’s important for people with moles to regularly check them to ensure none are potentially cancerous.
### Should I Be Concerned?
Most moles typically appear during childhood or teenage years and usually aren’t something to worry about. But if you notice a new mole after turning 30, it’s wise to see a doctor and check if it’s cancerous or not. The same goes for any mole that starts to change over time. Checking yourself at home regularly is the best way to notice new moles or changes in existing ones.
### Screening
If you have a lot of moles, say 100 or more, it’s a good idea to do a self-check once a month. Those with fewer moles might only need to do this every few months. To perform a screening, get undressed and stand in front of a full-length mirror. Start at your head and work your way down to your feet, checking the front, back, and sides of your body. Don’t forget to examine your scalp and palms. Getting a family member’s help is useful for those hard-to-see areas.
Taking photos can be very helpful to track any changes in your moles over time. Make sure each photo is dated, so it’s easy to spot differences. If you see changes in your photos, it’s time to visit a doctor.
### When to See a Dermatologist
During your self-check, watch out for certain issues. Pay attention to moles that are asymmetrical; if one side looks different from the other, that’s a sign. Blurry or irregular edges can also be concerning. Moles that have multiple colors or unusual shades like white or red should be checked out. To check size, use a pencil’s eraser; if a mole is larger than the eraser, have a doctor look at it.
Skin cancer can appear in many forms, and those linked with moles can be particularly dangerous. If untreated, these types of cancers can be life-threatening. Regular self-checks are one of the best ways to catch cancer early and increase the chances of successful treatment.