Indigestion does not cause bloody stools. Most cases of bloody stools are due to rupture of the gastrointestinal mucosa or damage to the walls of submucosal blood vessels. The primary symptoms of indigestion include decreased appetite, bloating, stomach pain, and acid reflux. Most instances of indigestion are caused by reduced gastric motility, and there are medications available that promote gastrointestinal motility and increase appetite. Additionally, it is recommended to eat a light and reasonable diet, avoiding greasy and spicy foods. Engaging in appropriate outdoor activities after meals can help increase gastrointestinal motility. Maintaining a good mood is also beneficial for improving symptoms of poor gastrointestinal function. (Note: The use of medications should be under the guidance of a doctor.)