Both crabs and scabies are spread by close body contact, so they are commonly passed beween sexual partners.
But both scabies and crabs can also be passed when there is close body contact that is not sexual.
Scabies and crabs can also be passed when sharing towels, clothing and bedding.
Please leave a comment to let us know if that answers your question or if you need more information.
For other readers, please feel free to leave a comment, or let us know if this was helpful.