Katanas, the traditional Japanese swords, typically do not have prominent crossguards, also known as tsuba, as compared to many Western swords. There are a few reasons for this design difference:

1. Single-Edged Blade: Katanas have a single-edged blade with a curved shape, which allows for more precise cutting and slicing motions. The lack of a substantial crossguard allows the user to perform these maneuvers more fluidly.
2. Versatility and Maneuverability: Katanas were often wielded with both hands and used in quick, agile movements. A smaller or simpler guard facilitates better balance and maneuverability during combat.
3. Cultural Aesthetics: Japanese sword-making traditions often prioritize elegance and simplicity in design. The minimalistic aesthetic of a katana aligns with the Japanese cultural values of understated beauty and efficiency.
4. Grip and Hand Protection: While katanas lack a prominent crossguard, they typically have a handle wrapping called tsuka-ito that provides a secure grip. The design of the handle and wrapping techniques ensure a firm hold on the weapon, reducing the need for an extensive crossguard.

It's worth noting that not all katanas completely lack crossguards. Some katanas may have small, subtle crossguards incorporated into their designs, but they are generally less pronounced compared to the crossguards found in many Western swords.