What is inside a sebaceous cyst?

Answer

According to MedlinePlus, the oily or cheese-like substance found within a sebaceous cyst is the protein keratin. The sebaceous gland is located under the skin and swollen hair follicles or skin trauma can cause a cyst to form.

Most sebaceous cysts appear as non-painful lumps under the skin, typically on the trunk, neck or face, states MedlinePlus. They can usually be diagnosed by a doctor through examination of the lump. A doctor may also recommend additional tests to rule out other possible conditions.

About.com states that sebaceous cysts do not need to be treated, are not dangerous, and will go away on their own. However, it is possible for a cyst to become infected or become an abscess.

Q&A Related to "What is inside a sebaceous cyst?"
A sebaceous cyst is a small bump/lump under the skin that is filled with keratin (pus) They can be located on the face, neck, trunk or groin area. You can find more information here
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the oil from an oil gland if not washed away will oxidize and become solid blocking the pore,once this has happend oil can still be produced inside the pore ,in some cases the area
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A foul odor is also often present in the substance called keratin which fills
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There are two types of kidney cysts: simple and complex. These cysts are not associated with any genetic or inherited diseases like polycystic kidney disease. Simple kidney cysts
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