Cyclical and Noncyclical Breast Pain

Breast Pain That Is or Is Not Related to Your Period

Breast pain can be experienced in many different ways, and it may be related to your menstrual cycle (cyclic) or unrelated (noncyclical). You may have a vague feeling of tenderness or a dull ache or instead suffer from constant throbbing pain or sharp stabbing pain. Episodes of breast pain may come on a regular schedule, may happen only once, or may endure for long periods of time. It may occur in only one breast (unilateral) or in both (bilateral).

There are a number of different terms used to describe breast pain including mastodynia, mastalgia, mammalgia, or mastitis (though the term mastitis is more often is used to describe an infection or inflammation of the breasts).

Most of the time breast pain does not mean breast cancer, though some people do have pain with breast cancer and the symptom should never be dismissed.

To begin to define the cause of your pain, one of the first questions to answer is whether your breast pain is cyclical—occurring at regular intervals associated with your period, or noncyclical—unrelated to your menstrual period or occurring after menopause.

Let's look at some of the causes of both of these types of pain, as well as consider some other conditions that may "feel like" breast pain.

Cyclical Breast Pain

Cyclical Breast Pain and Menstrual Cycle
Differences between the causes of cyclical and noncyclical breast pain. Art © Pam Stephan

Cyclical breast pain happens during a woman's menstrual cycle or at least varies in intensity at different points in the cycle. A range of sensations in one or both breasts can accompany the hormonal ebb and flow that a premenopausal woman normally experiences. 

Breast pain is often one of the components of premenstrual syndrome (PMS) and can present along with fatigue, irritability, and a reduced concentration level. Breast pain may also occur before your periods without the other common symptoms of PMS.

Breast pain associated with PMS is often achy with a sensation of your breast feeling full, heavy, or swollen. The discomfort often begins a few days before your period starts and may continue until your period has stopped, though it often decreases in severity as time goes on.

"Normal" Cyclical Pain

Cyclical breast pain may be normal and associated with normal hormonal changes. It may also be due to the benign breast conditions fibrocystic breast changes or mammary duct ectasia.

Conditions Associated with Cyclical Breast Pain

With fibrocystic breast changes, you may note generalized achiness with diffuse areas of your tenderness in your breasts. Your breasts may feel firm and thick. Both microcysts (which can't be felt) and macrocysts (which can be felt) may occur. Larger cysts can be seen on ultrasound, and a needle biopsy to drain the cyst may be needed to diagnose the condition.

Mammary duct ectasia is more common in perimenopausal (women nearing menopause) women and often causes tenderness in the nipple and areola. Less commonly, duct ectasia may occur in older people or even in adolescents.

Breast pain associated with oral contraceptive use isn't uncommon and may require changing to a different combination birth control pill.

Noncyclical Breast Pain

Noncyclical breast pain is unrelated to your menstrual cycle or occurs after menopause. The pain may vary in intensity, but instead of changes caused by hormones, may be caused by an illness or injury, weight gain, breast surgery, or certain medications.

Noncyclical breast pain may occur in both breasts or only one breast. You may have pain in one specific area, or it may be generalized.

Wearing an ill-fitting bra is a common cause of noncyclical breast pain, but it won't cause breast cancer.

Breast Pain Can Be a Symptom of Breast Cancer

Breast cancer is an uncommon cause of breast pain, and the majority of breast cancers do not cause pain. That said, a 2017 study found that roughly one in five or six women with breast cancer experience pain during the three-month period before their diagnosis, and an uncommon form of breast cancer, inflammatory breast cancer, often begins with pain.

Pain Near Your Breast

Your breasts rest on your chest wall muscles and ribs and lie above your heart, lungs, and other structures of the chest. Within your breasts are a rich supply of nerves, blood vessels, and connective tissues. Pain from any of these tissues can sometimes appear to arise in the breasts even though it does not.

Arthritis in your spine or ribs may cause noncyclical breast pain, as well as muscle strains that affect the muscles of your chest. Nerves can be pinched or veins inflamed leading to pain.

If your pain is in your left breast it's important to make sure that your pain isn't related to heart disease. Chest pain related to a heart attack is often different in women than in men and can be vague and subtle in character.

How To Handle Breast Pain

If you are premenopausal, you may be able to distinguish if your pain is cyclical or noncyclical by keeping a chart of your cycle and tracking your pain.  

If your pain is persisting you should see your doctor to have a clinical breast exam. Certainly, if you notice a lump, changes in your skin such as redness, thickening, or an orange peel appearance you should see your doctor right away.

Treatment Options

Treatments that have been effective for non-cancer related cyclical and noncyclical breast pain include topical anti-inflammatory medications such as Topricin (diclofenac), oral anti-inflammatory drugs such as Advil (ibuprofen), and hormonal treatments such as Parlodel (bromocriptine) or Danocrine (danazol). For severe, persistent pain, surgery (mastectomy) is sometimes needed.

And if your body and breasts have changed, perhaps it is simply time for a bra fitting session and some pretty, supportive, new bras.

A Word From Verywell

With breast cancer affecting roughly one in eight women, symptoms related to the breasts can sometimes cause significant anxiety. It's important to talk to your doctor if you are experiencing this fear. Sometimes reviewing risk factors and making sure you are up to date on appropriate screening can reduce anxiety, and subsequently, help with pain. It's important to note that conventional mammograms are not enough for people who are suspected to have familial breast cancer, such as those who have BRCA mutations or other gene mutations associated with breast cancer. In people who are high risk (have a lifetime risk of developing breast cancer that is 20 percent or higher), breast MRI screening is often recommended as mammograms can miss up to 15 percent of cancers.

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