Mnemonic to remember the Causes of Urinary Retention

Remember the causes of Urinary Retention using the mnemonic ATONIC BLADDER.


  • Atonic myelitis
  • Transverse myelitis
  • Obstruction to urethra, e.g. stone, stricture, etc.
  • Neurological: multiple sclerosis, spinal cord disease
  • Infections: UTI
  • Compression of bladder by fibrosis/ retroverted uterus
  • Bladder: stone, tumor
  • Lithium
  • Anti-cholinergic drugs
  • Drug: sympathomimetic
  • +Delivery – after effect
  • Enlarged prostate
  • Rupture of urethra
  • +Retroverted uterus

Hope that mnemonic helped. Got a better mnemonic for the same? Let us know in the comments below.
Also check out these medical mnemonics

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