Symptoms of gastrointestinal bleeding include:

• Vomiting:
• Vomiting blood
• Vomiting material that looks like coffee grounds
• Blood in the stool, that may appear as:
• Black stool
• Maroon stool
• Rectal bleeding
• Red stools
• Rapid pulse
• Pale skin
• Lightheadedness
• Fainting

Additional symptoms of gastrointestinal bleeding may include:

• Abdominal pain
• Constipation
• Diarrhea
• Heartburn
• Unintentional weight loss

For more information:

• Upper gastrointestinal bleeding
• Lower gastrointestinal bleeding