Girls, after abortion or miscarriage, they sent me for an ultrasound. …

Girls, after abortion or miscarriage, they sent me for an ultrasound. The doctor says there are clots of blood in the uterus. And I need to walk more, drink beetroot juice and go to the toilet small. If they don't come out on their own, then the midwife will clean them manually ? Who had this experience? Is this procedure painful? I'm very afraid to get off the chair?