I have a small bump under my right arm about the size of a dime. It is near the surface of the skin, but definitely beneath it; it can be seen on its own without having to feel around for it or anything. I have heard that breast cancer can occur around the sides of the breast as well, and this bump is along the area of my breasts, but closer to my back. I think I noticed it about 3 months ago and it has not changed at all; it's not red, has no hair, isn't swollen. What is your suggestion here? Does the Health Center offer professional breast exams? Is this necessary? (I'm 19 years old, if that matters.)
There are many possibilities of what this could be--a sebaceous cyst, a plugged sweat gland or hair follicle, a fatty deposit, a lymph node (less likely due to how superficial to the skin you describe it) and much less likely a tumor. We do breast exams and evaluation of any skin bump either by exam or if necessary, biopsy. So yes, do come in so we can take a look and a feel.