When you have a bowel obstruction the poop gets hard and then becomes stuck inside your colon.
If you have a bowel obstruction then you can try taking some laxatives or stool softeners to help loosen up the feces to allow your colon to pass the hard stools.
If you cannot get your bowels cleaned out with laxatives or stool softeners then you may need to see your doctor so that the doctor can remove the hard feces manually or give you a suppository or enema.