| References | No. of articles Studied | No. of RCTs | Result |
| 1 | Kjonniksen et al.(2002) | 20 | 8 | - It is not strongly documented that hair removal results in a higher frequency of SSI than nohair removal.
- Several randomised and observational studies with controls show that either wet or dry shaving the evening before the procedure results in a significantly higher infection rate than depilatory or electric clipping
- There is no convincing difference in the incidence of postoperative SSIs between electric clippings, depilatory cream or no hair removal.
- Hair removal with clippers should be performed as closed as possible to the time of the procedure.
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| 2 | Niel-Weise et al. (2005) | 4 | 4 | - Data from the results off our trials comparing different hair removal policies were sparse. Evidence tha thair removal has any effect is inconclusive. When hair removal is considered necessary, evidence about when hair should be removed is inconclusive. There was some evidence that hair removal by clipper is superior to hair removal by razor.
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| 3 | Tanner et al. (2009) | 11 | 11 | - There view finds insufficient evidence of an effect of preoperative hair removal on rates of SSIs and of the relative effects of shaving and depilatory cream.
- There is no research comparing hair removal using clippers with nohair removal.
- If it is necessary to remove hair then both clipping and depilatory cream result in fewer SSI than shaving with a razor. Not rial shave compared clipping with depilatory cream.
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