Breast specialist Dr Carol-Ann Benn spoke to Azania Mosaka about what are often termed man boobs or 'moobs'.
She says during puberty, boys develop 'stonies' - a hard lump behind the breast - which often goes away as they get older, but sometimes does not.
The causes of 'moobs' are physiological or modifiable she says. Anabolic steroids, alcohol consumption, dagga or it can be under-active fibroid and testicular tumors are all causes of the condition.
Alcohol gets broken down secondary in the liver, if you are drinking everyday and not counteracting it with exercise, you can get male breast development.— Dr Carol-Ann Benn, breast specialist
Dr Carol-Anne Benn says to prevent moobs from to growing they use selective estrogen modulator which helps with the pain.
Listen to Dr Carol-Ann Benn talking to Azania Mosaka about what causes men moobs and how to prevent it: