While this is normal, changes in color or size outside of pregnancy or breastfeeding may be a sign of other issues. Bumps: Your nipples and areolas may have bumps when you're cold or stimulated. It's important to not just examine the breasts during your monthly self-exam, but also the areolas and nipples. The areolas protect the breasts from irritation and cracking skin; this can be caused by saliva spread from an infant breastfeeding or from leftover milk residue. Areolas can change in color or size for many reasons, many of which are completely harmless. If you notice bumps or lumps that don't go away during your monthly self-exam, you should notify your doctor.
Mila. Age: 29.
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Felicity. Age: 23.
It's important to not just examine the breasts during your monthly self-exam, but also the areolas and nipples. Knowing the different causes and expected changes can help you identify irregularities that might signal something more serious. If it is breast cancer, seeking help right away will help you catch the disease early on, when it's easier to treat. The areolas can vary in size and shape, including round or oval shapes. Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles.