Skin growths, such as cysts and moles, are common, and for many people, they raise the same important question: โShould I have this removed?โ
At St. Louis Dermatology & Cosmetic Surgery in Troy, MO, we help patients from across Lincoln County, St. Charles County, and surrounding towns determine whether removal is necessary, recommended, or simply a matter of personal preference.
This guide addresses the most frequently asked questions we receive in our clinic, providing insight into the differences between moles and cysts, when removal is recommended, available treatment options, and what to expect during and after the procedure.

Understanding the Difference: Cyst vs. Mole
Cysts and moles may look similar at a glance, but theyโre entirely different skin conditions.
What is a Cyst?
A cyst is a sac-like lump under the skin, typically filled with fluid, keratin, or oil. Common types include:
- Epidermoid cysts
- Sebaceous cysts
- Pilar cysts (commonly on the scalp)
Most cysts are benign (non-cancerous) but can become infected, painful, or grow over time.
What is a Mole?
Moles are clusters of pigmented skin cells (melanocytes) and can appear anywhere on the body. They may be:
- Flat or raised
- Light to dark brown or black
- Stableโor they may change over time
Moles are usually harmless, but some may turn into skin cancer, particularly melanoma, which makes evaluation important.
When Should You Remove a Cyst or Mole?
At our Troy, MO, clinic, patients often ask: โDo I need to remove this, or can I leave it alone?โ Hereโs how we help answer that.

Cyst Removal: When Itโs Needed
You may need to consider cyst removal if:
- It becomes painful, red, or inflamed
- It starts leaking fluid or pus
- Itโs growing in size
- It interferes with shaving, clothing, or movement
- Youโre concerned about cosmetic appearance
While some cysts shrink on their own, most do not go away permanently without medical treatment. Infected cysts may also require antibiotics.
Mole Removal: Medical vs. Cosmetic Reasons
Medical mole removal is recommended if a mole:
- Changes in shape, size, or color
- Has irregular borders
- Itches, bleeds, or becomes painful
- Appears suddenly after age 30
- Meets the ABCDE signs of melanoma (Asymmetry, Border, Color, Diameter, Evolving)
Even if a mole is benign, some patients opt for removal if it:
- Rubs against clothing
- Is located on the face or neck
- Is raised and frequently irritated
- Causes self-consciousness

What Does the Removal Process Involve?
At St. Louis Dermatology & Cosmetic Surgery, both mole and cyst removals are quick, in-office procedures, typically under local anesthesia.
For Cysts:
- A small incision is made to extract the cyst sac and contents
- If it is inflamed, it may need to be drained first and removed later
- Stitches may be required depending on size and location
For Moles:
- Moles may be shaved flat or excised entirely (with a small margin)
- The sample is often sent to a lab for biopsy
- Minimal downtime is expected, with most patients resuming normal activity the same day
Your procedure is performed by board-certified dermatologists and cosmetic surgeons, ensuring both medical safety and optimal cosmetic outcomes.
How Much Does Removal Cost?
We offer transparent, up-front pricing and will walk you through your options before any procedure.
In some cases:
- Medically necessary removals (suspicious moles, inflamed cysts) may be covered by insurance
- Cosmetic removals are typically self-pay, but affordable
Why Choose Us for Skin Growth Removal in Troy, MO?
Patients across Troy, Wentzville, OโFallon, Warrenton, and St. Charles County trust our practice because we offer:
- Board-certified providers with extensive surgical experience
- Fast, comfortable in-office procedures
- Advanced technology for minimal scarring
- A patient-first approach to education and care
We specialize not just in skin health, but in how that health impacts your confidence and daily life.

Book a Consultation Today
If youโre wondering whether your cyst or mole needs to be removed, donโt wait to find out. A quick evaluation can give you clarity and peace of mind.
๐ Call us at (314) 834-1400 or Request a Consultation Online