Hi,
It's very unlikely that you get blood in stools as a result of taking sugar containing meal.
I would advise visiting a doctor to see if he or she inspect this area and rule out any
anal fissure, and if not painful, then proceed with
Digital Rectal Examination and Proctoscopy to rule out any haemorrhoids or piles.
If that comes out to be normal, you may then proceed with
sigmoidoscopy to rule out any mass or ulcer, which can present with fresh blood.
In the meantime, I would advise you to use
soft diet, use some laxative,avoid
constipation and avoid spicy foods.
Hope I have answered your query.
Let me know if I can assist you further.
Regards,
Dr. Muhammad Zahir Shah,
Internal Medicine Specialist