Birth control

Birth control, also known as contraception, is the use of a method to prevent a pregnancy from taking place during or after sex.

Empath: The Luckiest Smurf stories
In the EMPATH: The Luckiest Smurf series, conception is usually granted by Mother Nature, so birth control through artificial means is rarely necessary, or even desirable among Smurfs, since they usually desire to have offspring rather than prevent new offspring from being conceived.

Hero: The Guardian Smurf stories
In the HERO: The Guardian Smurf series, the reproduction of Smurfs is mostly through new baby Smurfs being brought to the Smurf Village by stork from an unknown location. Although, as Mother Nature has told Hero at one time, Smurfs lack the necessary sex cells to physically reproduce, so birth control through artificial means becomes unnecessary.