Gynaecomastia
Overview
Gynaecomastia is where men have bigger breasts than usual. It's common and may not need treatment, but can sometimes be caused by other conditions.
Causes
Causes of gynaecomastia can include: hormone changes in men aged over 50, or during pubertybeing overweightcertain medicinesconditions such as anoveractive thyroid,kidney disease, orcirrhosisdrug use, includinganabolic steroidsthe effect of pregnancy hormones on some newborn babies
Treatment
Gynaecomastia is often harmless and may not need treatment, but if it's a problem for you, your GP may recommend: medicines that reduce or increase certain hormoneslosing weight, if you're overweight If your gynaecomastia is caused by a condition, getting treatment for the condition may help reduce the size of your breasts. Surgery can reduce your breasts if other treatments have not worked, but it may not be available on the NHS. When gynaecomastia happens in newborn babies, or when it's caused by puberty, it usually goes away by itself over time.