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

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Also check out these medical mnemonics