Specialist service · Urgent breast care
Breast Abscess Treatment
A breast abscess is a collection of pus that commonly causes a painful, warm swelling and may follow mastitis. It needs timely clinical assessment, usually ultrasound, and drainage when a collection is confirmed.
- Prompt examination and ultrasound assessment
- Needle aspiration or surgical drainage
- Antibiotics, culture and recurrence follow-up when indicated
Suitability
Symptoms that need prompt assessment
Do not wait for a painful breast swelling to become severe, particularly during breastfeeding or if you have diabetes or reduced immunity.
- A painful, hot, red or enlarging breast lump
- Fever, chills or feeling generally unwell
- Mastitis that is not improving after starting treatment
- A recurrent abscess, nipple discharge or a non-lactational inflammatory lump
Confirming the diagnosis
Examination and breast ultrasound help distinguish an abscess from cellulitis, an inflamed cyst or another mass and show the size, depth and number of pockets. Pus may be sent for culture, especially in recurrent, severe or previously treated infection. Non-lactational or atypical inflammation may need additional investigation after the acute episode.
Ultrasound-guided aspiration or incision
Many accessible collections can be drained with a needle, often guided by ultrasound and local anaesthetic. Aspiration may need repeating. A small incision is used when pus is thick, the collection is large or complex, skin is threatened, or needle treatment is unsuitable or unsuccessful. Antibiotics are added according to the clinical picture and local guidance.
- Drain the collection when indicated
- Use culture results to refine antibiotics
- Plan wound and ultrasound follow-up
Breastfeeding and recovery
Breastfeeding or milk expression can often continue during treatment, but the individual plan should be confirmed with the treating team, especially when the incision is close to the nipple or specific medicines are used. Pain and swelling should improve after effective drainage; failure to improve needs reassessment.
When to seek urgent help
Severe or spreading infection can become dangerous. Seek urgent medical care rather than relying on website advice.
- Rapidly spreading redness or swelling
- High fever, shaking chills, confusion, faintness or fast breathing
- Severe pain, skin darkening or threatened skin breakdown
- Failure to improve within about 48 hours of antibiotics
- Recurrent or persistent lump after the infection settles
Frequently asked questions
Can antibiotics alone cure a breast abscess?
Once a true pus collection has formed, drainage is usually required as well as antibiotics when indicated. Ultrasound helps guide the decision.
Is needle drainage painful?
Local anaesthetic is used. Pressure or brief discomfort can occur, and some abscesses need more than one aspiration.
Can I continue breastfeeding?
Often yes, and maintaining milk drainage may help in lactational infection. Confirm the plan with your treating team for your abscess location, wound and medicines.
Content was reviewed against official medical and professional patient-information sources.
Last medically reviewed: 22 August 2026
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This page is general information. Procedure choice, technique, recovery and risk vary with your examination and health.