Why do we feel the need to itch randomly? How does it help? - Secondary 11

Question: Why do we feel the need to itch randomly? How does it help?
- Keywords:
  itch,
  skin
Asked by siannasse to Adam, Amylou, Mark L, Samantha on 22 Jun 2012.
- Amy Evans answered on 22 Jun 2012:
  
  Hi siannasse,
  
  We get the need to itch as a natural response when our skin is irritated. For example if somthing was on the skin and causing irritation in the skin, then our body tells us to scratch through the feeling of itchiness. By scrathing we can remove whatever was on the skin to stop the irritiation in some cases.