Does the shot have any health benefits?

The shot stops or lightens periods, so it can really help you with things like anemia or endometriosis. And using the shot now can help protect your uterus from cancer later in life. A couple other little-known tidbits: If you have sickle cell disease, the shot may help you have fewer sickle crises. Or if you have grand mal seizures that get worse with your periods, the shot can decrease the risk of those, too.