Girls, hello everyone. Today I read about weak sphincter muscles. Have…

Girls, hello everyone. Today I read about weak sphincter muscles. Have you had any problems with that? My daughter doesn't poop from birth, and our manipulations are tough. She gets constipated easily, cries, and throws up because of it. Will everything get better on its own or can we help something? The pediatrician is treating us for constipation, but the stools are liquid.