Hello,

Thanks for writing to us.

Itching in the rectal opening can be caused by many reasons like-
1.Chemicals in the foods we eat, such as are found in spices, hot sauces, and peppers.
2.Irritation of continuous moisture in the anus caused by frequent liquid stools, diarrhea, or escape of small amounts of stool (incontinence).
3.Treatment with antibiotics also can lead to a yeast infection and irritation of the rectum.
4. Psoriasis.
5. Pinworm infestation.
6. Hemorrhoid or anal fissures
7. skin tags (abnormal local growth of anal skin).

Direct clinical examination is the only way to diagnose the problem.

Please visit your physician to undergo physical check up and also to undergo relevant investigations required in your case.

I hope my answer and recommendations are adequate and helpful. Waiting for your further follow up queries if any.

Regards.

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