An outer forearm tattoo is a type of tattoo that is placed on the outer side of the forearm. The placement of this type of tattoo is usually on the wrist, lower arm, or upper arm, and is typically done in a small size. It is usually done as a single piece, but can also be done as a larger piece with multiple tattoos combined. This type of tattoo is popular among women, as it is considered to be a more subtle and feminine design.