Scar tissue lump after lumpectomy: what to know

After lumpectomy, the operated area can become firm as the body repairs tissue. A collection of fluid or blood can also create a rounded or uneven area. Radiotherapy can affect the texture of treated breast tissue. These explanations can overlap, and touch alone cannot reliably distinguish healing from a breast cancer concern.

The location, size, firmness, tenderness, and timing of the lump help the clinician decide what to do next. Assessment may include an examination and breast imaging. A lump is a symptom to evaluate, not proof that cancer has returned or that it has not.

Note when you first noticed the lump and whether it changes with movement, swelling, or tenderness. Keep scheduled follow-up appointments and tell the breast team about any new finding rather than waiting for the next routine visit if it is changing. Do not repeatedly press the area, because this can increase soreness and make changes harder to judge.

Bring details of your lumpectomy, radiotherapy, medicines, and previous imaging to the appointment. Your team can explain whether observation, repeat imaging, drainage, or another test is appropriate. Lumpectomy is one form of breast-conserving surgery; other treatment choices are considered according to the clinical findings.

Contact your breast team promptly for a new, enlarging, or persistent lump, increasing redness or warmth, wound drainage, fever, skin pulling, nipple changes, or swelling in the breast or armpit. Seek urgent help for heavy bleeding, severe pain, or feeling acutely unwell. These warning signs require assessment and should not be explained away as scar tissue.

Could this be scar tissue, fluid, or another change? What examination or imaging is appropriate? Has radiotherapy altered the tissue in this area? How should I track the lump? Which changes mean I should call sooner? Do I need review of my breast cancer follow-up plan?