At high hair density there are a few loose strands that didn't settle down. If you need to render the back, you may want to run a short sim to get it to settle. If you lower the density and use thicker hair instead you probably won't have the issue (I don't think any of the guide hairs are sticking out like this), but for myself I prefer the realism of the current settings.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3