Are KS males more vulnerable to lumps or breast cancer?
Because of the testicular failure, the testicle may be pushed to make small amounts of oestrogen, more than that seen in the normal male. This may therefore give rise to an increase in breast tissue. Similarly, testosterone injections can often also be transformed into oestrogen giving rise to excessive breast tissue. For that reason there is a significant, but still very small, increased risk of breast cancer.
