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Did you recently notice a yellow or white lump on your skin? If so, there are higher chances that you have a sebaceous cyst. There are numerous types of cysts that can form on the skin and sebaceous is one of them. They are most commonly found on the neck, face, and torso. Though sebaceous cysts are usually not life-threatening, they can be problematic sometimes. Read below to understand everything about the sebaceous cyst, its origin, risks, and treatment.
Did you recently notice a yellow or white lump on your skin? If so, there are higher chances that you have a sebaceous cyst. ... There are numerous types of cysts that can form on the skin and sebaceous is one of them. They are most commonly found on the neck, face, and torso. Though sebaceous cysts are usually not life-threatening, they can be problematic sometimes. Read below to understand everything about the sebaceous cyst, its origin, risks, and treatment. Read More



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A sebaceous cyst is a non cancerous, slow growing lump that develops under the skin due to blockage of a sebaceous gland or hair follicle. It is filled with a thick, oily substance called keratin.
These cysts can appear anywhere on the body but are most commonly found on the face, neck, scalp, back, and upper torso. They are usually painless but may become swollen, infected, or tender in some cases.
Sebaceous cysts are generally harmless, but they may require treatment if they grow large, become infected, or cause cosmetic concerns.
Sebaceous cysts are very common skin conditions.
Some key facts include:
1. Epidermoid Cyst
Most common type, formed due to trapped skin cells under the skin.
2. Pilar (Trichilemmal) Cyst
Common on the scalp, arising from hair follicles.
3. True Sebaceous Cyst
Rare type arising directly from sebaceous glands.
4. Inflamed Cyst
Cyst that becomes red, swollen, and painful due to infection.
5. Ruptured Cyst
Occurs when the cyst wall breaks, causing inflammation.
Common Symptoms:
Infected Cyst Symptoms:
1. Blocked Hair Follicles
Most common cause of cyst formation.
2. Skin Trauma
Injury or irritation can trap skin cells.
3. Excess Sebum Production
Overactive oil glands can contribute.
4. Genetic Factors
Some people are more prone due to family history.
5. Skin Conditions
Acne or other inflammatory skin diseases.
6. Hormonal Changes
Can increase oil production and blockage risk.
Although usually harmless, complications may include:
Doctors diagnose sebaceous cysts through:
1. Physical Examination
Assessment of lump size, texture, and location.
2. Ultrasound Scan
Helps confirm cystic nature and rule out other lumps.
3. Dermatoscopy
Detailed skin examination using magnification.
4. Biopsy (Rare)
Done if diagnosis is unclear or malignancy is suspected.
1. Observation
No treatment needed if:
For infected cysts:
3. Incision and Drainage
4. Surgical Removal
Most effective treatment:
5. Laser Removal
Sebaceous cysts cannot always be prevented, but risk can be reduced by:

It is a non cancerous lump under the skin filled with keratin.
No, it is usually harmless.
Some small cysts may reduce, but most remain until treated.
Blocked hair follicles and oil glands are the main causes.
Usually no, but infected cysts can be painful.
Very rarely and most are benign.
Through observation, drainage, or surgical removal.
Yes, if the cyst wall is not fully removed.
If the lump grows, becomes painful, or infected.
Only for large, recurrent, or infected cysts.
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