Hi I'm installing a shower on my basemant,do I need a trap on the drain

hi i'm installing a shower on my basemant,do i need a trap on the drain
Yes! And unless you connect to a lavatory drain line you will need to run a vent off the shower. Without a trap you're opening a direct connection between your home and the sewer. This will allow sewer gas to enter your home. Sewer gas is a health hazard to your family and the methane content makes it explosive. Trap the shower! Good luck, Tom

Trap anything connecting to drain.

Trap anything connecting to drain.
That's trap and VENT anything connected to a drain

I stand corrected. I only said that 'cause he was talking about trap. To be more helpful, shoud have metioned vent, Thanks speedball1. I am not an authority
On plumbing, I like to provide different angle.