Thank you for the query.
If your grandparents has colon cancer
diagnosed when older than 50, most likely this is not a hereditary cancer, but sporadic one. Typical cancer symptoms
are abdominal pains, constipations and/or diarrheas, blood in stool
(mixed with the stool), weight loss, tiredness, low hemoglobin level.
Pain in the anus, itching and fresh bright red blood in the surface of the stool is most likely caused by hemorrhoids. Strong pain while passing the stool is also characteristic for anal fissure
I suggest you to try such treatment:
- avoid constipation (increase fiber rich products and mineral water intake)
- have sitz baths with Quercus Cortex
- wash your anus after every stool
- use hemorrhoids suppositories
Such treatment should give improvement in a week or so. If no improvement, colonoscopy
should be done.
Hope this will help.