I have an itchy rectum ?

See your doctor: An itchy rectum can be caused by numerous things but the first thing you should do is rule out infection especially if itching is worse during the night.

Pruritus ani: Pruritus ani is a medical condition that causes an itchy rectum. A number of foods have been associated with this condition: spices, hor sauces, pepper, coffee, tea, carbonated beverages, milk products, tomatoes, tomato products, white bread. You may want to delete some of these foods and see it that helps. Other causes include pinworms, hemorrhoids, psoriasis, diabetes and yeast.