Kallgren Dermatology Clinic offers a variety of services to the people of Boulder. We treat common skin disorders and do yearly skin cancer checks. If you have noticed a spot on your body,  there is a handy way to check if you need to be truly concerned. We have a guide listed below. If you are looking for a dermatologist to examine your suspect spots, call and make an appointment.

A for Asymmetry. Benign spots are symmetrical.  This means that if you were to imagine a line down the center of the, they would be the same on the left as on the right if

B for Border Is the border of your spot even and smooth or does it bleed out, making a ragged line into your skin? If you have a spot with an irregular  border, have it checked out by your dermatologist.

C is for Color The color of a spot can tell you a lot. If you have a spot that is black or brown, be sure to have it checked out immediately. This excludes regular freckles. If the color is inconsistent, fading in and out, this is also a red flag and should be examined. A melanoma may also be red, blue or white.

D is for Diameter malignant moles are larger than benign ones.The rule of thumb is if a spot is larger than a pencil eraser,have it looked at.

E is for Evolving If your spot changes in any of the above mentioned categories it could be malignant and needs to be seen. One category not mentioned above, but that is very important is the general character of the spot. Is it bleeding? Is it crusty? These qualities are big red flags and you need to be seen immediately.


Kallgren Dermatology offers yearly skin checks to help you monitor and changes in your skin and catch any pre-cancerous spots or malignancies early.