Hemorrhoids often itch when swollen veins in the anus or rectum triggerinflammation.
Scratching can make things worse by causing even more inflammation.
This article discusses why hemorrhoids cause itching and what you’re able to do about it.
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It also looks at other causes of anal itching.
Maria Korneeva / Getty Images
Why Do Hemorrhoids Itch?
Pruritus ani is common withinternal or external hemorrhoids.
It is a complex sensory reaction involving the immune system and other biological and physical factors.
Inflammation
Hemorrhoids causeinflammationmediated by a hormone-like substance calledprostaglandin.
Mast cells contain chemicals known as histamine.
These are the same chemicals that causeallergy symptomsin other parts of the body.
Local nerves in the skin can also become overly stimulated with repetitive rubbing or scratching.
This suggests that stool is an irritant that causes itching.
Passing stools can also cause inflammation and irritation as they scrape past hemorrhoids during bowel movements.
Mucus leakage is also a common symptom of hemorrhoids.
Excessive sweating can do the same.
It may cause symptoms such as pain or itching.
Fungal Infections
Anal itching can be triggered by a fungal infection such as ayeast infection.
Itch from an anal fungal infection may be helped by practicing good hygiene and wearing loose, breathable clothing.
Prescription antifungal medications may also help.
Over-the-counter antifungal creams are not recommended for anal yeast infections.
The warts start as small growths and can grow larger.
Genital herpescan affect the anal region as well as the genitals.
It is sparked by theherpes simplex virus.
Anal itching is often followed by the outbreak of painful blisters and sores.
It can occur in the genital and anal areas.
Parasites
Pinwormsare small parasites that can live in the colon and rectum.
They are more common in children than adults.
Scabiesis a skin condition triggered by tiny mites that burrow into the outer layers of the skin.
It can also cause intense itching.
Food Sensitivities
Food sensitivities can also cause anal itching in some people.
Anal cancer is a rare cancer associated with HPV.
Signs include bleeding from the anus or rectum.
There may also be a lump near the anus that can be easily mistaken for a hemorrhoid.
Itching and anal discharge are common.
Scratching or rubbing can make the itching worse.
Keeping the area clean and dry can help soothe itch and irritation.
Frequently Asked Questions
The itch from hemorrhoids will settle when the hemorrhoids do.
See your healthcare provider if the itch is persistent.
Hemorrhoids usually clear up on their own within a few days to two weeks, with or without treatment.
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