Can Hormones Cause Gynecomastia?

Hormones sit behind nearly every case of gynecomastia. The condition shows up when oestrogen activity outpaces testosterone, and that imbalance can come from puberty, age, thyroid issues, low testosterone, or external sources like steroids and certain prescriptions. Which hormonal driver is at play decides whether the case settles on its own, needs medical correction, or ends up needing surgery.

According to Dr Harikiran Chekuri, one of India’s pioneering plastic surgeon, “Hormones sit behind almost every case of gynecomastia, though the source of the imbalance changes a lot from one patient to the next. Pinning down whether it’s puberty, ageing, an underlying condition, or an external substance is what shapes the treatment plan that actually delivers.”

Gynecomastia comes from a shift in two key hormones working together, with several others playing a quieter role. Knowing which pathway has actually shifted clears up much of the confusion patients walk in with.

• Oestrogen and testosterone balance: Everything starts here. When oestrogen activity edges ahead of testosterone, even slightly, glandular tissue can start forming. Hold that shift for a few months and the chest changes.
• Puberty-driven shifts: Boys between 12 and 16 often hit a brief oestrogen spike while their hormones sort themselves out. Most of those cases clear up within six months to two years, with no treatment needed.
• Age-related testosterone decline: After 50, testosterone naturally slides downward. That alone shifts the oestrogen-to-testosterone ratio, and when body fat rises alongside it, the effect compounds quickly.
• Thyroid hormone involvement: Hyperthyroidism nudges oestrogen activity upward by speeding up the conversion of androgens into oestrogens. Once the thyroid is treated properly, the chest tissue often settles in step with it.
• Prolactin and pituitary hormones: Higher prolactin levels, whether from pituitary issues or certain medications, throw the testosterone-oestrogen ratio off in a different way. Less common, but worth ruling out.

The hormonal driver shapes the treatment, and the treatment shapes the outcome. For patients in Hyderabad, Redefine Hair Transplant and Plastic Surgery Center runs full hormonal panels before any treatment recommendation is made.

Plenty of hormonal shifts don’t originate inside the body. They come from things men introduce, often without realising they’re feeding the very imbalance behind their gynecomastia. Knowing the usual suspects keeps men from accidentally causing their own.

• Anabolic steroid use: Cycling steroids floods the body with synthetic testosterone, a chunk of which gets converted to oestrogen through aromatisation. The chest changes mid-cycle and tends to stay even after the cycle ends.
• Prescription medications: Anti-androgens, several antidepressants, ulcer drugs, anti-anxiety medications, and certain cardiac drugs all list gynecomastia in their side-effect profile. When no other cause turns up, a careful medication review is the next step.
• Recreational substances: Alcohol, cannabis, and a few illicit drugs all mess with how the liver handles hormones. Oestrogen climbs, testosterone drops, and chronic use slowly builds the imbalance.
• Environmental oestrogens: Plasticisers, certain pesticides, and oestrogen-mimicking compounds in cosmetics or food packaging add quiet pressure to the system. Each individual exposure is small, but the cumulative effect adds up over years.
• Excess body fat: Fat tissue itself behaves like an oestrogen factory through aromatisation. More body fat means more oestrogen production, which feeds straight back into the cycle that drove the gynecomastia in the first place.

Spotting the external trigger often resolves the case without surgery, but only when it’s caught in time. Read our previous blog on Fat Transfer to see how surgical options sit alongside hormonal correction.

REFERENCE LINKS:

• American Society of Plastic Surgeons: Gynecomastia Hormonal Causes: https://www.plasticsurgery.org
• International Society of Aesthetic Plastic Surgery: Male Breast Enlargement: https://www.isaps.org
• PubMed Central: Endocrine Pathophysiology of Gynecomastia: https://www.ncbi.nlm.nih.gov/pmc