When you feel a lump in the breast, many people often panic and worry that the lump might be “breast cancer.” In fact, most breast lumps are not cancerous, but there are some signs to watch for and see a doctor for safety. This article summarizes in an easy-to-understand way which “types of lumps” should be seen by a doctor and may be related to breast cancer.
What can cause breast lumps?
Although many lumps are not cancerous, proper evaluation is still necessary to distinguish suspicious cancerous lumps from benign lumps. Causes of breast lumps vary and many types are harmless, such as:
- Breast cysts (Breast cyst) Small to large fluid-filled sacs, usually soft and can be tender when pressed
- Benign tumors (Fibroadenoma) Round, smooth lumps that move easily, commonly found in ages 20–40 years
- Changes related to menstrual cycle Breast fullness, tenderness, and swelling before menstruation
Signs of breast lumps that “should raise suspicion of breast cancer”
1. Hard lump with irregular shape The cancerous lump is often very hard, with uneven edges, feels lumpy and not clearly round
2. Lump fixed to the skin or muscle If the lump “does not move with your hand” or feels stuck and movement is limited, it may be more suspicious
3. Lump grows rapidly in a short time A lump that changes quickly, such as growing within a few weeks to months, should be checked promptly
4. Abnormal skin changes on the breast Signs often associated with cancer include dimpling of the skin like orange peel, redness, swelling, warmth, or chronic wounds on the breast
5. Changes in the nipple Abnormal nipple inversion, nipple discharge especially if bloody or from one side only
6. Swollen lymph nodes in the armpit If a lump is felt in the armpit as well, it may indicate lymph node involvement
When should you see a doctor immediately?
- New lump that has never been felt before
- Lump becomes harder, changes size, or starts to hurt
- Abnormal nipple discharge
- Unexplained changes in breast skin
- Family history of breast cancer
Why should you get screened for breast cancer?
1. To detect abnormalities early even without symptoms
2. Easier treatment and higher chance of cure if detected early
3. Reduce the risk of cancer spreading
4. Help assess personal risk
5. Provide peace of mind and reduce anxiety
Tests that help evaluate breast lumps
The type of test depends on age, lump characteristics, and patient risk history. Doctors may consider the following tests:
- Breast ultrasound (Breast Ultrasound)
- Breast X-ray (Digital mammogram with tomosynthesis)
- Biopsy (Biopsy) for the most definitive diagnosis
When should you get screened for breast cancer?
Ages 20 and above: Perform monthly breast self-exams
- Check 7–10 days after menstruation ends, or if no menstruation, choose a fixed day each month
- Helps you know your “normal breast condition” and notice changes early
Ages 25–39: Annual doctor exams with ultrasound as needed
- Doctors will perform detailed palpation
- If dense breast tissue or abnormal symptoms are present, ultrasound may be recommended
Ages 40 and above: Should have regular annual screening This is the age when risk clearly increases and screening should include
- Digital Mammogram once a year
- Breast Ultrasound for those with dense breast tissue
High-risk groups should start screening earlier May start mammogram screening as early as age 30–35 years or earlier as advised by a doctor, such as
- Having a first-degree relative diagnosed with breast cancer before age 50
- Having BRCA1/BRCA2 gene mutations
- Having received chest radiation during childhood or adolescence
Feeling a lump does not always mean cancer Many breast lumps are benign and treatable, or may not require treatment at all. However, evaluation by a breast specialist helps identify the true cause and allows treatment from the early stage, increasing the chance of complete cure.
