Mothers who give birth to large babies could be at more than double the risk of breast cancer in later life, according to a study by the University of Texas.
Researchers found the trend in mothers who delivered babies weighing 8.25 pounds or more – putting them in the top fifth in terms of newborn size.
The study, published in the online journal PLoS ONE, suggests having a large baby is linked to increased levels of hormones including oestrogen known to be associated with increased risk of the disease.
Lead study author Radek Bukowski said: “Women can take steps to increase their general protection against breast cancer.”
- Bukowski R, et al. Birth Weight, Breast Cancer and the Potential Mediating Hormonal Environment. Advance online publication