What happens during a mammogram and how much does it hurt?

Typically 2 images. Most centers in the us take two images. One is oblique (called a medial lateral oblique or mlo) and one is head to toe (called craniocaudal or cc). Compression is required in both projections and this part can be painful. Once the images are obtained they are evaluated by a radiologist who has satisfied certain criteria established by the fda. A report should be available that day or within 1 week.
The images are done. From three vantages: medial to lateral; lateral to medial; head toward toe. Compression and magnification is done for spots of suspicion. Every woman I have ever spoken with hates compression it is painful.
Mammo. The tech will ask you to stand facing the mammo machine, and place one breast at a time on a flat surface.A flat compression paddle will gently be lowered to compress your breast. Compression spreads out the breast tissue and eliminates motion.The compression may be uncomfortable,but shouldn't hurt. Compression usually lasts no more than a few seconds. 2 views of each breast are obtained.
Yes. It is very important for your breast to be compressed as much as possible. This is usually somewhat painful.