Gynecomastia is the growth of real breast gland tissue in men, and it's more common than many men think. The core is often a disturbed balance between testosterone and oestrogen, where oestradiol becomes relatively too high. A blood test can map that balance.
It's annoying and sensitive, but important: it's usually benign and often explainable.
What causes gynecomastia?
The ratio between testosterone and oestrogen sets a lot. With overweight, fat tissue converts more testosterone into oestrogen. Puberty, certain medicines, alcohol, drugs and sometimes an underlying condition can also play a role. A low testosterone with a relatively high oestradiol is a common pattern.
Which blood values are interesting?
Testosterone, oestradiol, SHBG and sometimes prolactin together give a picture. No single value proves anything on its own; your doctor looks at the whole and at your physical exam.
When do you see your GP?
New, one-sided, painful or fast-growing breast tissue is a reason to see your GP. See also high oestrogen in men and the pillar male hormonal health.
Getting started
The Men's Hormones panel brings your testosterone, oestradiol and SHBG together.
References
- Wu FCW, et al. Identification of late-onset hypogonadism in middle-aged and elderly men. N Engl J Med. 2010;363(2):123-135. doi:10.1056/NEJMoa0911101.
- NHG-Standaard (male breast complaints, biology). Dutch College of General Practitioners.
- Health Council of the Netherlands. Background document on hormones and health. The Hague.
Disclaimer
Caliberhealth works with BIG-registered doctors who assess your blood results. This article gives general information and is not a substitute for medical advice from a GP or specialist. A blood test is a tool, not a diagnosis in itself. For serious symptoms, contact your GP, or in an emergency call 112.
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