How does the incidence of breast abscesses and masses vary by age?

Updated: Jul 27, 2020
  • Author: Andrew C Miller, MD; Chief Editor: Jeter (Jay) Pritchard Taylor, III, MD  more...
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Answer

Fibroadenoma, a benign condition, is the most common cause of breast mass in women younger than 35 years. [5]

In 2017, women aged 40 years or older accounted for nearly 96% of new breast cancer diagnoses and 98% of breast cancer deaths.

The median age at breast cancer diagnosis is 62 years.

Breast infections most commonly affect women aged 18-50 years. [3]

Nonpuerperal breast masses encompass a wider range of ages, from the late second to eighth decade of life. Peak incidence is often in the fourth decade of life. Ninety-five percent of these infections occur in women. [8]

Puerperal breast abscesses and mastitis are commonly found in women of childbearing age (mean age of 32 years). [1]


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