I am wondering if my scar is infected?

It is better to go with your surgeon or primary care physician to get an evaluation. It is important to check the condition of the area, especially if the scar looks raised, or the skin around it, has color or texture changes.

While what you are experiencing may be nothing serious, you should see your doctor. You have nothing to lose and everything to gain including a peace of mind!

What you are describing sounds like a hypertrophic scar or a keloid scar. They are both characterized by itchiness, swelling, and discoloration. Both can be treated with excision of the scar and sometimes steroid injections. Keloids can be more difficult to treat. Indications of an infection would include pain, swelling, redness, and fever. If you have any of those symptoms, you should return to your surgeon immediately for care. Whether your problem is a hypertrophic or keloid scar, an infection, or simply dry skin, your best bet is to follow up with your breast surgeon and have the scar evaluated.

Hypertrophic scars can act this way. Silicone gel or a steroid injection can help. You should go back and visit your surgeon to see what they can offer you.

It is a good idea to have an evaluation by a board certified plastic surgeon rather than to solve your problem on the internet. It is possible there could be a late problem related to your biopsy.