Nipple pain in girls and women is almost always caused by normal hormonal shifts, whether from the menstrual cycle, puberty, or early pregnancy. Less commonly, friction, skin irritation, or certain medications are behind it. The cause usually becomes clear once you consider the timing and any other symptoms happening alongside the soreness.
Menstrual Cycle Changes
The most common reason for nipple and breast soreness is the hormonal fluctuation that happens every month. About two-thirds of women who experience breast pain have this cyclical type, which follows a predictable pattern tied to the menstrual cycle. Pain typically ramps up during the luteal phase, the roughly two weeks between ovulation and your period, then eases once your period starts.
During that window, rising progesterone causes breast tissue to swell slightly, and estrogen stimulates the milk duct system. The combination creates that full, tender feeling concentrated around the nipples and surrounding tissue. Some months are worse than others, and the intensity can also shift if you start or stop hormonal birth control, since those pills and patches deliver the same types of hormones that drive the cycle naturally. If you notice your nipples hurt most in the days leading up to your period and the pain disappears within a day or two of bleeding, this is almost certainly what’s going on.
Puberty and Breast Development
For younger girls, nipple soreness is one of the earliest signs that breasts are starting to develop. The first visible change is the appearance of small “breast buds,” nickel-sized bumps that form directly under the nipple and areola. These buds can feel tender, sore, or even itchy as the tissue grows. This stage, called thelarche, typically begins between ages 8 and 13, though the exact timing varies widely.
Tenderness comes and goes throughout breast development, not just at the very beginning. Later stages bring their own discomfort as the areola changes shape and the breast fills out. The soreness is caused by new tissue stretching and forming, and it’s completely normal. It can last on and off for a couple of years as development progresses.
Early Pregnancy
Sore, tingly nipples are one of the earliest signs of pregnancy, sometimes showing up before a missed period. The sensation feels similar to premenstrual tenderness but tends to be more intense and persistent. You might also notice that your nipples look darker than usual, the veins on your breasts become more visible, and your breasts feel fuller or heavier overall. If there’s any chance of pregnancy and the soreness doesn’t follow your usual pre-period pattern, a home pregnancy test is the simplest way to rule it in or out.
Friction and Physical Irritation
Nipple pain doesn’t always come from the inside. Repeated rubbing from clothing is a well-known cause, especially during exercise. Fabric moving back and forth across the nipple during a run or workout can create small cracks or raw patches on the skin, sometimes called jogger’s nipple. Cotton shirts are particularly bad for this because they absorb sweat, get heavy, and cling to the chest, increasing friction. Cold weather makes the problem worse by causing nipples to become more erect and exposed to rubbing.
A well-fitting sports bra or a snug moisture-wicking top significantly reduces the risk. If your shirt has a stiff printed logo sitting right at chest level, that’s another common culprit. Outside of exercise, an ill-fitting everyday bra, rough lace, or underwire digging into the wrong spot can also cause persistent soreness.
Skin Conditions and Infections
The skin on and around the nipple is thin and sensitive, making it prone to irritation. Contact dermatitis (an allergic skin reaction) can develop from new laundry detergents, body lotions, soaps, or fabrics. Symptoms include itching, redness, flaking, or a rash on the nipple and areola. Switching products one at a time usually helps identify the trigger.
Yeast infections of the nipple, sometimes called nipple thrush, are more common in women who are breastfeeding. The hallmark symptoms are burning, stinging pain on the nipple surface along with itching and sometimes deep breast pain. The nipple area may look pink, shiny, or flaky. This is a different sensation from the dull ache of hormonal soreness; thrush tends to feel sharp and persistent, often worsening during and after feeding.
Medications That Cause Breast Pain
Several types of medication list breast or nipple tenderness as a side effect. Hormonal contraceptives (the pill, patch, or ring) are the most common offenders, especially in the first few months of use. Estrogen replacement therapy works through the same mechanism. Certain antidepressants in the SSRI class, some antipsychotic medications, and specific blood pressure drugs can also trigger breast soreness. If nipple pain started around the same time you began a new medication, that connection is worth exploring with whoever prescribed it.
When Soreness Signals Something Else
In rare cases, persistent changes to the nipple skin can point to a condition called Paget’s disease of the breast, a type of cancer that affects the nipple surface. It typically looks like eczema, with scaly, red, or crusty skin on one nipple that doesn’t respond to standard skin treatments. The key distinguishing feature is that it affects only one side and doesn’t improve with moisturizers or steroid creams the way eczema would. A small skin biopsy, where a doctor removes a tiny disc of tissue, confirms or rules out the diagnosis quickly. This condition is uncommon, but any one-sided nipple change that won’t heal after a few weeks deserves a closer look.
Simple Ways to Ease the Pain
For cyclical hormonal soreness, a supportive bra that fits well makes the biggest difference. Some women find that reducing caffeine in the second half of their cycle helps, though the evidence for this is mixed. A warm compress or cool pack applied for 10 to 15 minutes can take the edge off acute tenderness.
For friction-related pain, covering the nipple with a small adhesive bandage or nipple guard before exercise prevents further damage, and switching away from cotton to synthetic moisture-wicking fabrics keeps things drier. If the skin is already raw or cracked, keeping it clean and letting it air-dry is generally as effective as applying ointments. Research on topical treatments like lanolin or specialized nipple creams has found that expressed breast milk or simply leaving the area alone works just as well for healing in most cases, with pain typically dropping to mild levels within seven to ten days.