How can it be that my abdominal region seems to be a little hard?

Constipation: The standard american diet does not have enough fiber so that most people do not completely empty there intestines although they can have daily bowel movements. When your intestines get a little backed up, your stomach can feel hard. You should try to drink at least 64 oz of water and take fiber supplements daily and it will probably improve. If it does not, see your doctor.