Using a pencil point rather than a cutting spinal needle decreases the risk. The size of the pencil point needle does not appear to make a difference, while smaller cutting needles have a low risk compared to larger ones. Modern, atraumatic needles such as the Sprotte or Whitacre spinal needle leave a smaller perforation and reduce the risk for<unk> . However, the evidence that atraumatic needles reduce the risk of<unk>  <unk>  without increasing adverse events such as paraesthesia or backache is moderate-quality and further research should be done. Morphine, cosyntropin, and aminophylline appear effective in reducing<unk><unk><unk><unk> s. Evidence does not support the use of bed rest or intravenous fluids to prevent<unk> .
Post-dural-puncture headache
External compression headache
Acephalgic migraine
Mixed tension migraine
Cold-stimulus headache
Tension headache
Red wine headache
Lupus headache