Breast cancer is one of the most common cancers among Thai women, and its incidence continues to rise each year. In many cases, patients seek medical attention after discovering a lump in the breast or experiencing breast pain. However, it is also common for breast cancer to develop without pain, leading many women to dismiss the symptoms—only to discover later that the lump was malignant and had already progressed.
Finding a Lump Without Pain May Be More Concerning
If you discover a movable lump in the breast that is not painful, do not ignore it. Breast lumps generally fall into one of three categories:
- Breast cysts
- Benign breast tumors (non-cancerous)
- Breast cancer
In the case of breast cysts, you may notice that the lump changes in size depending on your menstrual cycle—typically enlarging before your period and shrinking afterwards. These lumps are usually tender or painful.
However, benign tumors and early-stage breast cancer often present as painless lumps. In fact, studies show that up to 90% of early-stage breast cancers appear as painless lumps. Therefore, any woman who notices a lump—even if it’s not painful—should consult a doctor promptly for evaluation.
What Causes Breast Lumps and Breast Cancer?
The increasing incidence of breast cancer in Thai women is believed to stem from several factors, including:
- Environmental changes and pollution
- Exposure to harmful substances in food
- Dietary habits
- Emotional stress
- Genetic predisposition
The best preventive measure is self-care and regular breast self-examinations. It is recommended that women perform breast self-exams at least 1–2 times per month, ideally during a shower, to detect any abnormalities. If a lump is found, see a doctor within 1–2 weeks for further investigation and diagnosis.
Early Detection Saves Lives
Breast cancer is treatable and manageable when detected early. Timely screening allows for early diagnosis and more effective treatment, increasing the chances of full recovery and maintaining quality of life.
Diagnosis and Treatment of Breast Lumps
When visiting a doctor, the diagnostic process will typically include:
- Medical history review (age, symptoms, menstrual history)
- Clinical breast examination by a physician
- Breast ultrasound
- Digital mammography
If abnormalities are found, additional procedures may be necessary:
- Aspiration of cystic fluid
- Fine-needle aspiration or core biopsy of the lump
- Surgical removal of the lump for pathological analysis
These steps help determine the type of tissue and assess the risk of malignancy, allowing physicians to develop a personalized treatment plan based on the diagnosis.
if you discover a lump in your breast—even if it moves and causes no pain—do not delay seeking medical attention. Early diagnosis and proper evaluation are key to successful treatment and a better outcome.
