Not all gynecomastia is the same — it comes in grades, from a small swelling around the nipple to a fully feminised chest. Knowing your grade guides the right treatment. Here are the four grades, the causes, and the common question: does gynecomastia cause infertility?
What is gynecomastia?
A very common condition in men where one or both breasts are larger or more prominent than normal — often a source of embarrassment, and worth understanding before treating.
Causes of gynecomastia
- Hormonal imbalance between testosterone and oestrogen (puberty, ageing, endocrine disease).
- Medications — some hormonal, anti-androgen, heart, antidepressant and HIV drugs, plus alcohol and recreational drugs.
- Health conditions — obesity, liver or kidney disease, endocrine tumours, Klinefelter syndrome.
- Poor nutrition / low zinc, which affects testosterone.
- Anabolic steroids used to build muscle.
The 4 grades of gynecomastia
- Grade 1: minor enlargement around the nipple, no skin sagging.
- Grade 2: moderate enlargement extending beyond the nipple, with slight skin looseness.
- Grade 3: significant enlargement with clear skin sagging, possibly covering the chest.
- Grade 4: severe enlargement resembling a female breast, covering the whole chest with obvious sagging.
(Some surgeons classify into three grades; others add the fourth for the most severe cases.)
How do I know my grade?
The descriptions above give a rough idea, but diagnosis needs an exam: a clinical assessment of size and spread, imaging (ultrasound or mammogram) if needed, and hormone blood tests to find the cause and confirm whether it’s glandular tissue or fat.
Pseudo-gynecomastia
Pseudo-gynecomastia is caused by fat accumulation rather than glandular growth, usually linked to weight gain. It often resolves with overall weight loss, or can be treated with chest liposuction.
Does gynecomastia cause infertility?
Gynecomastia itself doesn’t cause infertility — but it can be a sign of a hormonal imbalance that affects fertility. Low testosterone can cause both gynecomastia and reduced sperm production, and high oestrogen can disturb the balance needed for fertility. If it comes with low libido or erectile issues, see a doctor for assessment.
The grades explained — with Dr. Sherif Hegazy
Want to know your grade and the best treatment? Book a consultation with Dr. Sherif Hegazy.
