A bump on your anus can occur for several reasons.
Your anus is the opening at the end of yourdigestive tract, where stool exits your body.
It can occur in response to factors such as a virus, genetics, orpressure and strain.

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Finding its cause can help you know whether it may improve with home treatment or needs medical care.
This article describes the symptoms, causes, and treatment of a bump on your anus.
It can also help in describing the problem to your healthcare provider.
A painful bump that suddenly appears within 24 to 48 hours is often related to an injury or infection.
These feelings can include:
Outside or Inside
A bump can occur inside or outside your anus.
An external bump on your anus is visible and can be felt with your fingers.
Internal bumps form in the lining and may not cause a sensation when touched.
They form due to increased pressure on the area.
They can occur while straining during a bowel movement or sitting for long periods on the toilet.
They can also occur during pregnancy when there is extra pressure on these veins.
Internal hemorrhoids are usually not painful.
They are flat, soft, and covered with a layer of skin or mucus.
External hemorrhoids can cause pain when the overlying skin is irritated or deteriorated.
Symptoms of external hemorrhoids include:
Anal Fissure
Ananal fissureis a small cut or crack in the anus.
It can occur from passing large or hard stools, often withconstipationor straining.
They typically cause a sharp pain triggered by a bowel movement.
The pain can last several minutes to a few hours.
It can develop if one of your anal glands gets clogged with bacteria or stool.
They can occur from any direct contact to the anal area.
Anal warts can cause discomfort though they can also occur without symptoms.
Skin tags can occur from many causes, such as excess skin that remains from prior external hemorrhoids.
Anal skin tags may also be related to irritation or friction.
Anal skin tags are harmless and do not have to be removed for health reasons.
Anal pimples can also occur from:
Molluscum Contagiosum
Molluscum contagiosumis a skin infection passed through direct contact.
When it occurs in adults, it is considered a STI.
These bumps are usually painless unless they become infected.
Anal Cancer
Anal canceris a rare form of cancer in which malignant cells form in the anal tissue.
Most anal cancer cases are related to HPV.
A bump on your butt may go away naturally, depending on its cause.
In some cases, surgery may be needed to correct the problem.
Getting an accurate diagnosis of anus bumps can ensure that you receive the right treatment.
Summary
There are many causes of a bump on your anus.
Causes can range from somewhat minor cases of contact dermatitis to rare but severe cases of anal cancer.
Hemorrhoids are a common cause of the problem.
Getting the right diagnosis is the best way to know the exact cause and find the best treatment.
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