Worried about your symptoms?
Start the Mastitis test with our free AI Symptom Checker.
This will help us personalize your assessment.
By starting the symptom checker, you agree to the Privacy Policy and Terms of Use
Breast tenderness
Swelling of the affected area
Lump in the breast
Hot skin
Have a fever
Tender breast/breasts
The problem area has swollen
Not seeing your symptoms? No worries!
Inflammation of the breast, caused by bacteria entering the milk ducts or by a duct becoming blocked. Good breastfeeding technique and avoiding pressure on the breast can help prevent it.
Your doctor may ask these questions to check for this disease:
It is safe to continue breastfeeding. Painkillers and antibiotics can relieve symptoms and clear the infection, respectively.
Reviewed By:
Scott Nass, MD, MPA, FAAFP, AAHIVS (Primary Care)
Dr. Nass received dual medical degrees from the David Geffen School of Medicine at UCLA and Charles R. Drew University in Medicine and Science. He completed Family Medicine residency at Ventura County Medical Center with subsequent fellowships at Ventura, University of North Carolina-Chapel Hill, George Washington University, and University of California-Irvine. He holds faculty appointments at Keck School of Medicine of USC, Loma Linda University School of Medicine, and Western University of Health Sciences.
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
Content updated on Mar 27, 2025
Following the Medical Content Editorial Policy
Was this page helpful?
We would love to help them too.
With a free 3-min Mastitis quiz, powered by Ubie's AI and doctors, find possible causes of your symptoms.
This questionnaire is customized to your situation and symptoms, including the following personal information:
Biological Sex - helps us provide relevant suggestions for male vs. female conditions.
Age - adjusts our guidance based on any age-related health factors.
History - considers past illnesses, surgeries, family history, and lifestyle choices.
Your symptoms

Our AI

Your report

Your personal report will tell you
✔ When to see a doctor
✔︎ What causes your symptoms
✔︎ Treatment information etc.
See full list
Q.
Mastitis Pain? Why Your Breast Is Inflamed & Medically Approved Next Steps
A.
Mastitis pain and breast inflammation are usually caused by a blocked duct or infection, especially during breastfeeding, leading to sudden tenderness, warmth, redness, and flu-like fever. Start evidence-based care now by keeping milk flowing with frequent feeds and better latch or positioning, resting and hydrating, using ibuprofen or acetaminophen, and applying warmth before feeds and cool compresses after. If symptoms are moderate to severe, if you develop a high fever, a painful fluid-like lump, rapidly spreading redness, or no improvement within 24 to 48 hours, see a clinician promptly since antibiotics or drainage may be needed. There are several factors to consider that could change your next steps, so see the complete guidance below.
References:
* Betzold CM, Ghambir A, Amir L. New Insights into the Management of Lactational Mastitis. Semin Perinatol. 2023 Oct;47(5):101786. doi: 10.1016/j.semperi.2023.101786. Epub 2023 Sep 2. PMID: 37666687.
* Puri S, Dhingra R, Arora S, Jadaun P. Lactational mastitis: A comprehensive review of pathophysiology, diagnosis, and management. J Midlife Health. 2023 Jan-Mar;14(1):3-9. doi: 10.4103/jmh.jmh_12_22. Epub 2023 Mar 15. PMID: 37050596; PMCID: PMC10091809.
* Jahan S, Khan MI, Islam MS, Sultana M, Sultana T, Chowdhury SM. Diagnosis and management of lactational mastitis: a systematic review. Matern Child Nutr. 2022 Jul;18(3):e12918. doi: 10.1111/mcn.12918. Epub 2022 Feb 28. PMID: 35229341; PMCID: PMC9287383.
* Boettcher H, Krutsch E, Shrim A, Krutsch K. Management of Mastitis in Lactating Women: A Narrative Review. Cureus. 2022 Nov 25;14(11):e31899. doi: 10.7759/cureus.31899. PMID: 36582531; PMCID: PMC9790587.
* Amir LH. Lactational Mastitis: An Overview of Causes, Diagnosis, and Management. Clin Lact. 2021 May;12(2):77-83. doi: 10.1891/CL-2021-0010. PMID: 34188981.
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.

“World’s Best Digital
Health Companies”
Newsweek 2024

“Best With AI”
Google Play Best of 2023

“Best in Class”
Digital Health Awards 2023 (Quarterfinalist)

Which is the best Symptom Checker?
Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1Spencer JP. Management of mastitis in breastfeeding women. Am Fam Physician. 2008 Sep 15;78(6):727-31. PMID: 18819238.
https://www.aafp.org/pubs/afp/issues/2008/0915/p727.htmlErivwo P, Turashvili G. Pathology of IgG4-related sclerosing mastitis. J Clin Pathol. 2021 Aug;74(8):475-482. doi: 10.1136/jclinpath-2020-207029. Epub 2020 Dec 16. Erratum in: J Clin Pathol. 2021 Dec;74(12):e16. PMID: 33328182.
https://jcp.bmj.com/content/74/8/475Pevzner M, Dahan A. Mastitis While Breastfeeding: Prevention, the Importance of Proper Treatment, and Potential Complications. J Clin Med. 2020 Jul 22;9(8):2328. doi: 10.3390/jcm9082328. PMID: 32707832; PMCID: PMC7465810.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7465810/