Red spots on the breast can be several things. One condition is hematoma formation (or blood collection underneath the skin) which is brought about by trauma or insect/animal bites. Skin infections can also present as such (bacterial or fungal infection). New nevus can also present with a red spot which should be evaluated properly. Malignancy can also present with a superficial red spot, however, there can be other pathologies or lesions underneath the skin.
I suggest you show these spots to your doctor for proper evaluation and management.
Regards and God bless.
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