Hardness in the first part of the morning stool occurs when the stool remains in the intestines for too long, which can be caused by indigestion and constipation. 1. Indigestion:Indigestion occurs when gastrointestinal motility slows down, resulting in hard stools in the morning. When indigestion occurs, a lot of food is not completely broken down in the body before it is formed into feces, which is not easy to be excreted and can also lead to hard stools in the morning. 2. Constipation: When constipation occurs, the fecal matter is retained in the body for too long, resulting in the recovery of fecal water, and no water intake at night will lead to hard stools in the morning. There may also be other reasons for the hardness of the front part of the stool, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.