When you get your avocado home from the supermarket, it would be advisable to put it in the refrigerator because it will stay good for a few days. Generally avocado starts to go bad after two or three days, even faster if it is left out of the fridge. By not properly storing your avocado at home, you are running the risk of ingesting bacteria that can grow on it over time. Some of the different adverse effects of this includes diarrhea, vomiting, and upset stomach.
In order to reduce the risk of exposure to bacteria and other highly unpleasant things, you will need to make sure that you either put your avocado in the refrigerator or the freezer if you do not plan on eating it for a while. Those who are not going to be eating their avocado within the next couple days after bringing it home from the store will want to cut it into chunks and put it in a tightly sealed bag so that no air is able to get in and contaminate the fruit.