A breast lump is swelling, a growth, or a lump in the breast.
Breast lumps in both men and women raise concern for
Both males and females of all ages have normal breast tissue. This tissue responds to hormone changes. Because of this, lumps can come and go.
Breast lumps may appear at any age:
- Both male and female infants may have breast lumps from their mother’s estrogen when they are born. The lump will most often go away on its own as the estrogen clears from the baby’s body.
- Young girls often develop “breast buds,” which appear just before the beginning of puberty. These bumps may be tender. They are common around age 9, but may happen as early as age 6.
- Teenage boys may develop breast enlargement and lumps because of hormone changes in mid-puberty. Although this may be upsetting to boys, the lumps or growth almost always go away on their own over a period of months.
Lumps in a woman are often caused by fibrocystic changes, fibroadenomas, and cysts.
Other causes of breast lumps include:
- Breast cancer
- Injury. Blood may collect and feel like a lump if your breast gets badly bruised. These lumps tend to get better on their own in a few days or weeks. If they do not improve, your doctor may have to drain the blood.
- Lipoma. This is a collection of fatty tissue.
- Milk cysts (sacs filled with milk) and infections (
mastitis), which may turn into an abscess. These typically occur if you are breastfeeding or have recently given birth.
Call your health care provider if
Call your doctor if:
- The skin on your breast appears dimpled or wrinkled (like the peel of an orange)
- You find a new breast lump during your monthly self-exam
- You have bruising on your breast, but did not experience any injury
- You have nipple discharge, especially if it is bloody or pinkish (blood-tinged)
- Your nipple is inverted (turned inward) but normally is not inverted
Also call if:
- You are a woman, age 20 or older, and want guidance on how to perform a breast self-exam
- You are a woman over age 40 and have not had a mammogram in the past year
What to expect at your health care provider’s office
Your doctor will get a complete history from you. You will be asked about your factors that may increase the risk of
You may be asked medical history questions such as:
When and how did you first notice the lump?
Do you have other symptoms such as pain, nipple discharge, or fever?
Where is the lump located?
Do you do breast self-exams, and is this lump a recent change?
Have you had any type of injury to your breast?
Are you taking any hormones, medications, or supplements?
Steps your health care provider may take next include:
- Order a mammogram to look for cancer, or a
breast ultrasoundto see if the lump is solid or a cyst
- Use a needle to draw fluid out of a cyst, which will be examined under a microscope to look for cancer cells
- Order a
- Study any nipple discharge under a microscope
How a breast lump is treated depends on the cause.
- Solid breast lumps are often removed with surgery.
- Cysts can be drained in the doctor’s office. If the fluid removed is clear or greenish, and the lump disappears after it is drained, you do not need further treatment. If the lump does not disappear or comes back, it is most often removed with surgery.
- Breast infections are treated with antibiotics.
- If you are diagnosed with
breast cancer, you will discuss your options carefully and thoroughly with your doctor.