Why Do I Get a Sharp Shooting Pain in My Armpit When Breastfeeding?
1. Introduction A sharp, shooting pain in the armpit during breastfeeding is primarily caused by the engorgement of ectopic mammary tissue known as the Tail of Spence, or the reactive swelling of axillary lymph nodes. The human breast is not perfectly round; functional milk-producing tissue extends laterally, wrapping around the pectoral muscle and terminating deep … Read more