Understanding Pilar Cysts and Their Effects on the Scalp

Written by Medicover Team and Medically Reviewed by Dr Saily Shejol , Dermatologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

A pilar cyst is a usually benign, fluid- or keratin-filled lump that develops from a hair follicle. These cysts most commonly occur on the scalp and are typically smooth, firm, round, and mobile under the skin. Pilar cysts are often painless, but they can become tender, swollen, or infected.

Most pilar cysts do not require treatment unless they become painful, infected, repeatedly recur, grow larger, or cause cosmetic concerns. A healthcare provider can examine the lump and recommend appropriate treatment when needed.

What are the Pilar Cyst Symptoms and Warning Signs?

Identifying the symptoms of pilar cysts early can help with appropriate evaluation and treatment. Although most pilar cysts are painless, complications can occur if a cyst becomes inflamed or infected.

Common Symptoms

Smooth, firm, round lump under the skin
Mobile and usually non-tender to touch
Most commonly located on the scalp
Size ranging from a few millimeters to several centimeters

Warning Signs

Redness and swelling around the cyst
Pain and tenderness, especially if the cyst becomes inflamed or infected
Warmth or increased sensitivity around the affected area
Pus or other drainage if the cyst becomes infected
Rapid enlargement or a noticeable change in the lump

What are the Common Causes of Pilar Cysts?

Pilar cysts develop from hair follicles and contain keratin and other cellular material. They commonly occur when cells from the outer part of the hair follicle multiply and become enclosed within the cyst.

Causes of Pilar Cysts

Hair follicle abnormalities: Pilar cysts develop from the outer root sheath of hair follicles.
Keratin buildup: Keratin and cellular material can accumulate inside the cyst.
Inherited tendency: Some people have a familial tendency to develop multiple pilar cysts.
Follicular changes: Abnormal growth of cells associated with the hair follicle can contribute to cyst formation.

When to See a Doctor?

Most pilar cysts are harmless, but any new or changing lump should be evaluated if there is uncertainty about its cause. Seek medical advice if the cyst becomes painful, inflamed, or changes noticeably.

The cyst becomes painful or inflamed
It grows rapidly or changes in appearance
The area becomes red, warm, or swollen
There is pus or other drainage
The cyst repeatedly returns after treatment
The lump interferes with daily activities or causes significant cosmetic concern

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How is Pilar Cyst Diagnosed?

Pilar cysts are usually diagnosed through a physical examination. The healthcare provider assesses the lump's size, location, consistency, mobility, and appearance. Further evaluation may be recommended if the diagnosis is uncertain or if the lump has unusual features.

Common Diagnostic Methods:

Physical Examination: Initial clinical assessment of the lump and surrounding skin.
Dermatological Evaluation: Helps distinguish a pilar cyst from other types of skin lumps or cysts.
Histopathological Examination: If the cyst is removed, laboratory examination of the tissue can confirm the diagnosis and rule out other growths.

At Medicover, dermatology services can help evaluate scalp lumps and determine the appropriate treatment when required.

What are the Treatment Options for Pilar Cyst?

Many pilar cysts do not require treatment if they are small, painless, and not causing problems. Treatment may be recommended if the cyst becomes painful or infected, grows larger, repeatedly returns, or causes cosmetic concerns.

Observation and Monitoring

Small, asymptomatic cysts may simply be monitored for changes in size, pain, redness, or drainage.

Surgical Removal

Local anesthesia: The area is numbed before the procedure.
Complete cyst excision: The cyst and its wall are removed to reduce the risk of recurrence.
Wound closure: Stitches may be used depending on the size and location of the cyst.
Recovery: Healing time varies depending on the size and location of the cyst and the type of procedure performed.

Treatment of an Infected Cyst

Antibiotics: May be prescribed when a bacterial infection is present.
Drainage: An inflamed or infected cyst may sometimes require drainage before or along with definitive removal.
Pain relief: Appropriate pain-relieving medicines may be recommended for discomfort.

Complete surgical removal is generally the definitive treatment when a pilar cyst needs to be removed. A healthcare provider can recommend the most appropriate approach based on the cyst's size, location, and condition.

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What are the Risk Factors for Pilar Cysts?

Some people are more likely to develop pilar cysts because of inherited or demographic factors.

Family history: Pilar cysts can run in families, particularly when multiple cysts develop.
Female sex: Pilar cysts are more commonly reported in women.
Middle age: They commonly develop during adulthood.
History of pilar cysts: People who have previously developed pilar cysts may develop additional cysts.

What is the Recovery Process After Pilar Cyst Treatment?

Recovery after pilar cyst removal is generally straightforward. Healing depends on the size and location of the cyst and the type of procedure performed.

Follow-up Visits: A follow-up appointment may be scheduled to check wound healing and remove stitches when necessary.
Post-operative Care: Keep the treated area clean and follow the wound-care instructions provided by your healthcare provider.
Avoid Trauma: Protect the treated area from unnecessary rubbing, scratching, or injury while it heals.
Long-Term Outlook: Complete removal of the cyst and its wall can reduce the likelihood of recurrence.

Support Services at Medicover

Medicover provides follow-up care and guidance to support wound healing after pilar cyst treatment.

What Precautions Can Help Prevent Pilar Cysts?

There is no guaranteed way to prevent pilar cysts, particularly when they occur because of an inherited tendency. However, avoiding unnecessary trauma to the scalp and seeking medical evaluation for new or changing lumps can support early management.

Precautionary Measures

Avoid unnecessary trauma or irritation to the scalp
Maintain good scalp hygiene
Do not squeeze, puncture, or repeatedly pick at a cyst
Monitor existing cysts for changes in size, pain, redness, or drainage
Seek medical evaluation if a scalp lump changes or becomes symptomatic

Potential Complications

Infection and inflammation
Abscess formation
Recurrence after incomplete removal
Scarring after surgical removal
Cosmetic concerns from larger or multiple cysts

Our Experience Treating Pilar Cyst

At Medicover, we provide evaluation and treatment for pilar cysts. Our dermatology team assesses scalp lumps carefully to confirm the diagnosis and recommend appropriate management. When removal is needed, treatment is planned according to the cyst's size, location, symptoms, and individual needs.

From diagnosis and treatment to follow-up care, our team focuses on safe procedures, proper wound care, and comfortable recovery.

Frequently Asked Questions

1. Can pilar cysts go away on their own?

Pilar cysts typically don't disappear without treatment. They often stay the same size or slowly grow and usually require surgical removal to resolve fully.