Although they can look and feel similar, there are differences between aboiland acyst.
Cysts and boils can be easily confused with each other.
This article describes how a boil and a cyst differ in their symptoms, causes, and treatment.

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What Are Boils and Cysts?
Boils and cysts may be similar in their presentation but are entirely different in why they occur.
Acarbuncleis a cluster of boils that extend into deeper tissues which can lead to the formation of anabscess.

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Acystis an encased sac of fluid or semi-solid materials that form in different tissues of the body.
Those affecting the skin can develop spontaneously, after an injury, or due to inflammatory or autoimmune diseases.
Boils
A boil appears as a red to purple swollen skin lump, similar to a pimple.
It usually has one or more whiteheads, calledpustules, that form in the center.
Pustules contain a white-yellow, pus-like fluid that may ooze from the boil.
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The size of a boil varies.
The size of a boil may increase quickly as the pus increases within the boil.
As the amount of pus increases, pain may become more intense.
A boil may feel tender to the touch or hurt constantly.
You may notice itching at the site of the boil before it forms.
Depending on the extent of the infection, you may also develop a fever and/or fatigue.
There are many different types of cysts that can affect the skin or the underlyingsubcutaneous layer.
These cysts appear as smooth lumps that are whitish-yellow or the color of your skin.
They can range in size from 1/2 inch to several inches across.
A cyst is usually painless and may not require treatment.
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A cyst is usually benign (noncancerous).
It is painless and doesn’t cause other symptoms unless it affects the normal function of the body system.
A boil develops from an infection of a hair follicle and the surrounding tissue.
The most common source of infection is astaph infectioncaused by theStaphylococcus aureus(S. aureus) bacterium.
The infection causes the skin tissue inside the boil to die.
Then, a pus-filled hollow space, called anabscess, develops within or just below the skin’s surface.
aureusbacteria on their skin and in areas like the lining of their noses without boils recurring.
It may also spread from contact with contaminated surfaces and objects.
Cutaneous cysts form when skin cells are not shed as they should be and instead fold into themselves.
This forms an encased sac filled with dead skin cells and fluid.
When the cyst reaches a certain size, it usually stops growing.
Some of these cysts form because of skin damage, such as that resulting from a body piercing.
There are different types of cutaneous cysts, including:
Is It Possibly a Pimple?
A pimple comes up whenever dead skin cells, excess oil, and bacteria get trapped inside a pore.
As the bacteria multiply, they cause inflammation, and a pimple forms on the skin’s surface.
A pimple is typically painless and smaller than either a boil or a cyst.
While a pimple often occurs in clusters, a cyst or boil usually appears as a single lump.
Diagnosing Boils vs. Cysts
Only a healthcare provider can make an accurate diagnosis of your skin bump.
Depending on the symptoms of your skin bump, your healthcare provider may perform the following laboratory tests.
The one thing you shouldneverdo to do is squeeze a boil or cyst.
Similarly, squeezing a cyst can rupture tissues and make way for a potentially severesecondary bacterial skin infection.
Strictly speaking, cutaneous cysts are not treated at home.
There is some evidence that certain natural tinctures can reduce epidermoid cysts.
The treatment would involve the surgical removal of the mass underlocal anesthesia.
Most excisions can be done in the provider’s office.
A larger concern is when a cyst becomes infected or a boil suddenly starts affecting deeper tissues.
Doing this increases the risk of inflammation or infection.
Summary
Boils and cysts are two common types of skin bumps.
They can look alike even though their causes differ.
A boil is triggered by a bacterial infection that affects a hair follicle and the tissue around it.
Treatment for a boil can involve using antibiotics to treat the infection.
A cyst usually doesn’t need treatment unless it causes pain or prevents you from doing normal tasks.
There is no known way to prevent a cyst.
Removing the cyst prevents it from recurring.
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