Platelets' arrival during the bacterium invasion.

Platelet Division is one of the blood components in the body that is formed by Platelets. They react to injuries that is bleeding and close them up, they also clear blood clots in blood vessels.

Due to their size and strength, they often have difficulties preforming simple tasks like unloading cargo and climbing down stairs therefore they work in groups to help out each other. They are also unable to protect themselves against pathogenic cells, thus they require protection from white blood cells while they respond to emergencies.

The Rules of Platelet Division During Thrombus [1]

  • Don't get separated! No going off on your own!
  • Don't fight amongst yourselves!
  • Make sure to use GPIb and stuff so you don't get blown away!


Platelets are small in size, resulting in their uniforms being over-sized on them. Their uniform consists a blue T-shirt and sand colored short pants. They also wear black boots with white edges or regular shoes with striped socks, and a white cap with '血小板' (Japanese word for 'Platelets') printed on it. They can decide the style of wearing their uniform, like wearing the cap backwards as such.

Known members


  1. Cells at Work! Anime, Episode 2

See also