What does it mean when your nipples constantly hurt?

Pain of Nipples. Some women experience pain of nipples when stressed or cold due to vasospasm (raynaud’s of the nipple). Allergies to deodorants, lotions ; soap can cause pain. Eczema or psoriasis can lead to nipple pain. When the nipple is engorged it can cause pain. Hormonal changes can cause (puberty, pms, period, pregnancy ; breast feeding). Thrush or bacterial infections can lead to pain. Friction against.