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What could be the reason for uneven breast size?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I have uneven breast size and slight pain in one breast, and one breast size has been increasing over the past five years.

Please help me.

Thank you.

Answered by Dr. Georges Hany Kozah

Education:

MD

Professional Bio:

Dr. Georges Hany Kozah is an experienced Lebanese Gynecologist with an MD from The Lebanese University Faculty of Medical Sciences (2016) and a Fellowship completed in 2022. Specializing in high-risk obstetrics, advanced ultrasound, oncology, colposcopy, and hysteroscopy, he combines expertise with a patient-centered approach. Passionate about women’s health, Dr. Kozah strives for excellence and optimal outcomes in collaborative, innovative care.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome to icliniq.com.

I read your query and understood it.

Uneven breast size is common, but a noticeable increase in size in one breast over five years, especially with pain, should be evaluated by a doctor. Some possible causes include:

  1. Hormonal changes (like puberty, pregnancy, and menopause).
  2. Fibroadenoma (a benign breast lump).
  3. Cysts (fluid-filled sacs in the breast).
  4. Fibrocystic breast changes (causing pain and lumpiness).
  5. Infections (like mastitis, though more common in breastfeeding women).
  6. Lipoma (a benign fatty tumor).
  7. Gynecomastia (in men, due to hormonal imbalance).
  8. Rarely, breast cancer.

I suggest you follow the below-mentioned instructions:

  1. Self-examine your breasts: Check for lumps, skin changes, nipple discharge, or redness.
  2. Consult a doctor: A breast exam, ultrasound, or mammogram may be needed.
  3. Monitor symptoms: Keep track of pain, size changes, and any new lumps.
  4. If you notice a persistent lump, increasing pain, or changes in skin texture, seek medical attention promptly.

Would you like guidance on performing a self-breast exam?

I hope this has helped you.

Kindly follow up if you have more doubts.

Thank you.

Medically reviewed by iCliniq medical review team
Published At May 17, 2025
Reviewed At June 3, 2025

Education:

MD

Professional Bio:

Dr. Georges Hany Kozah is an experienced Lebanese Gynecologist with an MD from The Lebanese University Faculty of Medical Sciences (2016) and a Fellowship completed in 2022. Specializing in high-risk obstetrics, advanced ultrasound, oncology, colposcopy, and hysteroscopy, he combines expertise with a patient-centered approach. Passionate about women’s health, Dr. Kozah strives for excellence and optimal outcomes in collaborative, innovative care.

This doctor is not available for online consultations on the platform anymore.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Education:

MD

Professional Bio:

Dr. Georges Hany Kozah is an experienced Lebanese Gynecologist with an MD from The Lebanese University Faculty of Medical Sciences (2016) and a Fellowship completed in 2022. Specializing in high-risk obstetrics, advanced ultrasound, oncology, colposcopy, and hysteroscopy, he combines expertise with a patient-centered approach. Passionate about women’s health, Dr. Kozah strives for excellence and optimal outcomes in collaborative, innovative care.

This doctor is not available for online consultations on the platform anymore.

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