My puppy eats his own poop. I don't know what to do about it.
My dog eats his own feces and I don't know how to stop him from doing it.
ーMy puppy eats his own poop. I don't know what to do about it.
「うちの子犬が自分のウンチを食べてしまい、どうして良いかわかりません。」
puppy「子犬」
poop「ウンチ」
I don't know what to do about it.「それについてどうして良いかわからない」＝「困っている」と言えます。
ーMy dog eats his own feces and I don't know how to stop him from doing it.
「うちの犬が自分の糞便を食べてしまい、どうやってやめさせれば良いかわかりません。」
feces「糞便・排泄物」
I don't know how to stop him from doing it.「それをするのをやめさせる方法がわからない」
ご参考まで！
カナダ 
