Breast pain causes and when to check

Cyclical and non cyclical breast pain

Breast pain (mastalgia) is broadly divided into cyclical pain that follows the menstrual cycle and non cyclical pain that does not. The two have different causes and patterns. Understanding which type you experience helps inform what action to take.

Cyclical breast pain

Cyclical pain links to the menstrual cycle, typically worsening in the days before a period and improving once the period starts. Both breasts are usually affected. The pain is often described as a heavy, tender or aching sensation. Cyclical pain is caused by hormonal fluctuations through the cycle, particularly the rise and fall of oestrogen and progesterone. It is the most common type of breast pain and is generally not a sign of serious disease.

Non cyclical breast pain

Non cyclical pain does not follow the menstrual cycle. It may affect one or both breasts and can be sharp, burning or aching. Causes include muscular strain in the chest wall, breast cysts, infection (mastitis), injury, certain medications and breast surgery. Non cyclical pain is more common in women after menopause when cyclical hormonal influence is no longer a factor.

Extramammary pain

Some pain felt in the breast area actually originates in the chest wall, ribs or shoulder. Conditions including costochondritis (inflammation of cartilage between the ribs and sternum), shoulder problems or even heart conditions can produce pain that feels like breast pain. A GP examination can help identify whether the source of pain is the breast tissue itself or nearby structures.

Pain location and characteristics

Where the pain is felt and how it feels can give clues to the cause. Pain in both breasts that comes and goes with the cycle is typically cyclical. Sharp, localised pain in one breast may suggest a specific cause like a cyst or muscle strain. Burning pain may suggest skin irritation or nerve involvement. The specific characteristics help guide assessment.

What can cause breast pain

Breast pain has many possible causes. Most are benign but some warrant medical investigation. Understanding common causes helps put symptoms in context.

Hormonal fluctuations

The menstrual cycle produces predictable changes in breast tissue. Oestrogen and progesterone affect breast tissue density and fluid retention. This is why cyclical breast pain typically worsens before a period. Hormone changes during pregnancy, while taking the contraceptive pill or during hormone replacement therapy can also produce breast tenderness or pain.

Breast cysts

Fluid filled sacs within the breast tissue are common, particularly in women aged 35 to 50. Cysts can produce localised pain and a lump that may be tender. Most cysts are benign and many resolve without treatment. Large or painful cysts can be drained by a healthcare professional. Cysts are not associated with increased breast cancer risk.

Mastitis and infection

Mastitis is inflammation of breast tissue often caused by infection. It is most common in breastfeeding women but can occur at other times. Symptoms include a red, warm, painful area of the breast, sometimes with fever. Mastitis usually requires medical treatment including antibiotics. Untreated mastitis can develop into a breast abscess.

Costochondritis

Inflammation of the cartilage where the ribs meet the breastbone produces pain that can be felt in the breast area. The pain is typically reproducible by pressing on the affected area of the chest wall. Costochondritis is generally self limiting but can be uncomfortable for weeks. Anti inflammatory medication and rest usually help.

Signs that warrant medical attention

Most breast pain is not caused by serious disease but specific features warrant prompt medical assessment. Knowing what to look for helps inform decisions about when to seek help.

New lumps or swelling

Any new lump or area of thickening in the breast should be assessed by a GP. While most breast lumps are benign, breast cancer can present as a painless or painful lump. Lumps that are hard, irregular, fixed in place or growing should be assessed promptly. A GP can examine the lump and arrange further investigation if needed.

Changes in breast shape or skin

Changes in the shape or size of one breast, dimpling of the skin, redness that does not settle or a rash around the nipple all warrant medical assessment. Changes to the skin texture or appearance, including skin that looks like orange peel, should be discussed with a GP promptly.

Nipple changes

Nipple discharge, particularly blood stained or coming from one nipple, should be assessed. Nipple inversion (the nipple turning inward) that is new should be checked. A rash on or around the nipple that does not resolve warrants investigation. These changes do not always indicate cancer but need professional assessment.

Severe or persistent pain

Pain that is severe, persistent, getting worse or affecting daily life should be discussed with a GP. Pain that is localised to one specific area, particularly if accompanied by other symptoms, warrants assessment. Pain that does not follow a typical cyclical pattern may need investigation to identify the cause.

What helps with breast pain

For pain that has been assessed and is not caused by a condition requiring specific treatment, several strategies can help manage symptoms. Discuss with your GP which approaches may be appropriate for your situation.

Wearing supportive bras

A well fitted supportive bra reduces movement of breast tissue and can significantly reduce pain, particularly during exercise. Sports bras during physical activity help. Some women find a soft supportive bra at night also reduces discomfort. Getting professionally fitted ensures the bra fits correctly. Poorly fitting bras can themselves cause discomfort.

Pain relief medication

Over the counter pain relief including paracetamol and ibuprofen can help manage breast pain. Topical anti inflammatory gels applied to the breast may also help. Always read the medication information and discuss with a pharmacist if uncertain. Long term use of pain relief should be discussed with a GP.

Caffeine and dietary factors

Some women find reducing caffeine intake helps with cyclical breast pain. The evidence is mixed but the change is harmless and worth trying. Reducing salt intake before periods may reduce fluid retention and associated breast tenderness. Maintaining a healthy body weight may help with hormone balance and symptom severity.

Hormonal considerations

For women on hormonal contraception or HRT who experience troublesome breast pain, switching to a different formulation may help. This requires discussion with a GP who can advise on alternatives. Some women find significant improvement when changing pill type. Stopping or changing medication should always involve medical advice.

More on female health

For the menstrual cycle context our The Menstrual Cycle: A Complete Guide covers the cyclical hormonal pattern. Premenstrual Syndrome: A Complete Guide covers other premenstrual symptoms. And The Key Hormones That Drive Female Health covers the hormonal background.