I went for a mammogram they said since i had found a lump they had to send me somewhere else!? why would this be?

Screen vs Diagnostic: There are 2 types of mammograms: standard screening of the whole breast, using either 2 or 3 views each side and diagnostic mammograms - using all kinds of special views, spot compression and magnification views. Some places only can perform screening type mammograms, and refer any abnormal results to another location that can complete the workup. Other places can do both types at 1 location.

Lump: Some facilities are only equipped to perform screening studies. For a diagnostic study to further evaluate a lump or other finding, a radiologist needs to be on site to direct the study, and additional views usually need to be performed. It is likely that your facility was a screening center only.