Growth hormones which assist the kids to grow can be a cause of breast cancer. This statement is a result of 17 sub-studies about the link between growth hormones (IGF1) and breast cancer. It is discovered that females with high intensity of IGF1 are having higher risk of budding estrogen-dependent breast cancer.

IGF1 is a typical hormone in the human body produced by the liver. It is necessary for timely growth and improvement. Female with the maximum intensity of this hormone are 28% more probable to grow breast cancer than those with low intensity. There may be prospective connotation for breast cancer prevention as IGF1 intensity can be manipulated by nutritional systems, and requires further study.

Numerous experiments have specified that there may be a relation existing, but those experiments were undersized with contradictory consequences. It was uncertain whether other aspects such as menopausal statuses were involved or not. By collecting the information from different experiments, the scientists have targeted to describe the risk more precisely. Scientist have also explored the electronic record for further investigation.