5 doctors weighed in:

If a 16-year-old man has a hard lump inside his nipple does that mean he has cancer?

5 doctors weighed in
Dr. Jeffrey Everett
Surgery - Thoracic
2 doctors agree

In brief: Not necessarily

Hormonal changes in this age group can cause gynecomastia which is swelling of breast tissue.
See your doctor for an examination to confirm.

In brief: Not necessarily

Hormonal changes in this age group can cause gynecomastia which is swelling of breast tissue.
See your doctor for an examination to confirm.
Dr. Jeffrey Everett
Dr. Jeffrey Everett
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Dr. Barry Rosen
Surgery
1 doctor agrees

In brief: No

It is normal to feel a small lump of breast tissue behind the nipple in a teenaged boy.
This can become enlarged during or just after puberty and is called gynecomastia. Breast cancer is unheard of in teenaged boys.

In brief: No

It is normal to feel a small lump of breast tissue behind the nipple in a teenaged boy.
This can become enlarged during or just after puberty and is called gynecomastia. Breast cancer is unheard of in teenaged boys.
Dr. Barry Rosen
Dr. Barry Rosen
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Dr. James Ferguson
Pediatrics

In brief: Transient change

About a half of males will undergo a transient nipple/breast enlargement at the onset of puberty.
Normally it will resolve slowly as other hormonal changes kick in over about a year. Less often it can persist over 3 years and surgery may be needed for cosmetic improvement. Carrying around extra weight can aggravate the issue as fat can masquerade as breast tissue.

In brief: Transient change

About a half of males will undergo a transient nipple/breast enlargement at the onset of puberty.
Normally it will resolve slowly as other hormonal changes kick in over about a year. Less often it can persist over 3 years and surgery may be needed for cosmetic improvement. Carrying around extra weight can aggravate the issue as fat can masquerade as breast tissue.
Dr. James Ferguson
Dr. James Ferguson
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