Extra (supernumerary or accessory) nipples or breast tissue

Extra nipples or breast tissue is fairly common (1-6% of women) and is a result of incomplete regression of the mammary ridge (milk line) during the development of the embryo before birth.

Is it true that some women have three breasts? - Quora

What is a third nipple?

Weird facts- Extra Nipples (Supernumerary Nipples) - Healthfacts

Breast pain

Breastfeeding

Third Nipple: Incidence, Types, Causes, and Removal

Engorged Breasts - Breastfeeding Support

What is an Accessory (Extra) Nipple and How is it Treated?

25 Breastfeeding Teaching Tools ideas breastfeeding, teaching tools, teaching strategies

Engorged Breasts - Breastfeeding Support

If a girl has a third nipple, would it develop into a third breast when she goes through puberty? - Quora

Third Nipple (Supernumerary Nipple): Causes, Types & Removal

Supernumerary Nipple: Causes, Diagnosis, and Treatment