1. Tuav cov ntaub qhwv nrog lub yob kawg tig mus.
2. Tuav qhov kawg ntawm cov ntaub qhwv hauv qhov chaw nrog ib sab tes. Nrog koj txhais tes, qhwv cov ntaub qhwv ob zaug ib ncig ntawm ko taw. Ib txwm siv cov ntaub qhwv los ntawm sab nraud hauv.
3. Muab cov ntaub qhwv ib ncig ntawm tus menyuam mos thiab ua ib lub voj voog rau ntawm lub hauv caug. Nres lub foreskin hauv qab lub hauv caug. Koj tsis tas yuav qhwv ib daim ntaub qhwv ib ncig ntawm koj lub plab lawm.
4. Khaws cov ntaub qhwv qhov kawg rau cov ntaub qhwv tas. Tsis txhob siv hlau clips qhov chaw ntawm daim tawv nqaij folds los yog wrinkles, xws li qab lub hauv caug.
