Breast lump

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Yoshinori Abe

Medically Reviewed By:

Yoshinori Abe, MD

Internal medicine

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Content updated on May 23, 2022

Description

A breast lump is a mass that develops in the breast. They may be hard or soft, smooth or lumpy and come in all shapes and sizes.

When to See a Doctor

Seek professional care if you experience any of the following symptoms

  • Erythema

  • Headache

  • Fever

  • Recent weight loss

  • Swelling of the affected area

Possible Causes

  • Epidermoid cyst

    Sometimes known as sebaceous cysts. These are harmless bumps under the skin that are more common in men. There are a few causes including injury or surgery.

  • Breast cancer

    Cancer of the breast. Risk factors include estrogen, genetics, alcohol and obesity. Protective factors include having been pregnant, especially at a younger age.

  • Gynecomastia

    A condition where abnormal hormone levels cause males to develop female characteristics (enlargement of the breast). Common causes include medications and tumors in the brain.

  • Premenstrual syndrome (PMS)
  • Mastopathy
  • Mastitis
  • Traumatic fat necrosis
  • Mondor disease
  • Malignant lymphoma
  • Testicular tumor

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you feel a lump in your breast?

  • Do you have any swelling in any part of your body?

  • Do you feel fatigued?

  • Is there pain when pressing on the breast?

  • Is there blood mixed with the breast milk? (If you are not breastfeeding, please skip this question)

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Yoshinori Abe

Medically Reviewed By:

Yoshinori Abe, MD

Internal medicine

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