hi everyone

, i got my babie "youji" almost 3 mths already. i need some help about potty train. he already trained to pee on the weewee pad, but i dont know why he doesnt like to go poo on the weewee pad also, he poo everywhere, he likes to hide somewhere people can not see him to finish his business.

anyone have any idea that i can train him to poo on the weewee pad also. btw, i plan to get him neutered, what's the best age to do it? he's almost 5mths. thx!!