Hi, I am

40 and had a mammogram as part of  general health check.  They saw a mass and then asked me back for an ultrasound.  They said because it had smooth rounded edges and was very small it should not be of concern and I should arrange a check up in 6 months. They also said some people prefer to just have a biopsy straight away.  What would people recommend I do?  Immediate biopsy or just follow up in 6 months?