Is it normal to shower twice a week?
Depends.It depends
Yes, showering twice a week can be fine, especially if you don’t get very sweaty or dirty. How often you need to shower depends on your activity, climate, and skin.
There’s no one shower schedule that suits everyone. If you’re mostly indoors and your skin gets dry or irritated, twice a week may work just fine. If you exercise, sweat a lot, work in dirt, or live somewhere hot, you may feel better showering more often.
On non-shower days, you can still wash your face and clean areas that get sweaty, and change your underwear and socks. The useful test is whether you feel comfortable and are keeping clean—not whether you’re hitting some official shower quota.