Pokemon-go – How to get rid of eggs

Eggs come in three distances: 2km (1.2mi), 5km (3.1mi), and 10km (6.2mi). The distribution of these seems to be relatively random, however 5km seems to be somewhat more common than the others. 10km seems to be somewhat rarer for now, however these numbers have become extremely balanced since the beta.

Pokemon's strength (and rarity) is usually determined by the distance you need to walk to hatch the Egg.

You can get any non-legendary (and egg-grouped Pokemon) from eggs, although some are rarer than others. For instance, you're much more likely to get a Rattata than a Growlithe from an egg.

There is infact no way to even reject an egg, at a Pokestop.

Once the egg drops, you can not tell its distance without picking it up.

That said, of the egg drops, and you do not pick it up, the egg will still be added to your inventory. The same happens with any item that drops from a Pokestop.