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Increased Anal Sphincter Tone

August 5th, 2019


  • Feel For

  • Increased tone of the anal sphincter, with difficulty passing a finger through the anal canal.
  • Causes of Increased Anal Tone

  • Stress / anxiety (external sphincter) - mostly related to examination
  • Spasm (internal sphincter) - fissure in ano, haemorrhoids, proctalgia fugax
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