Your Biopsy Result
Your skin biopsy has shown Basal Cell Carcinoma (BCC).
Although hearing the word “carcinoma” or “cancer” can be alarming, it is important to know that Basal Cell Carcinoma is the most common type of skin cancer and is also the least dangerous.
The vast majority of basal cell carcinomas are completely curable, especially when treated early.
This handout explains:
- What Basal Cell Carcinoma is
- Why it develops
- Why it needs treatment
- The different types of BCC
- What surgery involves
- What happens after treatment
- How to reduce your risk of developing additional skin cancers
What is Basal Cell Carcinoma?
Your skin is made up of several layers.
The deepest layer of the outer skin (the epidermis) contains basal cells.
These cells constantly divide to produce new skin cells, replacing older cells that naturally shed from the surface of the skin.
When the DNA inside these basal cells becomes damaged over many years, some cells begin to grow uncontrollably.
This abnormal growth forms a Basal Cell Carcinoma (BCC).
BCC is the most common cancer in humans, accounting for approximately 80% of all skin cancers.
Is Basal Cell Carcinoma Dangerous?
In most cases, Basal Cell Carcinoma is not life-threatening.
Unlike melanoma and some squamous cell carcinomas, BCC very rarely spreads (metastasizes) to other parts of the body.
However, this does not mean it should be ignored.
If left untreated, BCC continues to grow slowly and can:
- destroy healthy skin
- invade deeper tissues
- damage muscles
- damage cartilage
- destroy bone in advanced cases
- cause significant cosmetic and functional problems, especially on the face
For these reasons, treatment is always recommended.
Why Did I Develop Basal Cell Carcinoma?
The Main Cause: Years of Sun Exposure
The most important cause is long-term exposure to ultraviolet (UV) radiation from:
- sunlight
- tanning beds
Every time your skin is exposed to UV radiation, small amounts of DNA damage occur.
Although your body repairs much of this damage, repeated exposure over many years allows permanent mutations to accumulate.
Eventually, some basal cells become cancerous.
This is why BCC is much more common in adults over the age of 50, although it can occur at any age.
Other Risk Factors
You are more likely to develop BCC if you have:
- Fair skin
- Light-coloured eyes
- Blond or red hair
- A history of frequent sunburns
- Many years of outdoor work or recreation
- Previous skin cancers
- A weakened immune system
- Previous radiation therapy
- Certain rare inherited conditions
Where Does BCC Usually Occur?
Basal Cell Carcinoma usually develops on areas that have received the most sun exposure throughout life.
The most common locations include:
- Nose
- Cheeks
- Forehead
- Ears
- Eyelids
- Scalp
- Neck
- Chest
- Shoulders
- Back
However, BCC can develop almost anywhere on the body.
What Does Basal Cell Carcinoma Look Like?
BCC does not always look the same.
It may appear as:
- a small shiny or pearly bump
- a pink patch that slowly enlarges
- a sore that repeatedly heals and then bleeds again
- a scar-like white or yellow area
- a persistent ulcer
- a crusted or bleeding lesion
Many patients mistakenly believe it is simply a sore that refuses to heal.
Why Doesn’t It Heal?
Unlike a normal wound, BCC continues to grow because the abnormal cells keep dividing.
The skin tries to repair itself, but the cancer cells continue growing underneath.
This is why many BCCs:
- bleed repeatedly
- form scabs
- appear to heal temporarily
- reopen again
A skin lesion that does not heal over several weeks should always be assessed by a primary care provider.
What Did My Biopsy Show?
Your biopsy confirmed that the lesion is a Basal Cell Carcinoma.
The biopsy establishes the diagnosis.
However, in most cases additional treatment is still required, even if much of the visible lesion was removed during the biopsy.
This is because microscopic cancer cells may remain around or beneath the biopsy site.
Why Do I Need Surgery?
The goal is to remove all of the cancer cells.
During surgery:
- the biopsy scar is removed
- the remaining cancer is removed
- a small margin of normal-appearing skin is removed around the cancer
The tissue is then examined under a microscope to confirm that the cancer has been completely removed.
Complete removal provides the highest chance of cure and minimizes the risk of recurrence.
Is This Surgery Urgent?
Basal Cell Carcinoma usually grows slowly.
Unlike melanoma, it is generally not considered a medical emergency.
However, treatment should not be unnecessarily delayed.
The longer a BCC remains untreated, the larger it may become, making surgery more extensive and increasing the risk of damage to nearby structures such as the eyelids, nose, ears, or lips.
Early treatment usually results in:
- a smaller operation
- a better cosmetic outcome
- a simpler recovery
- a lower chance of recurrence
Different Types of Basal Cell Carcinoma
Your pathology report may describe a specific subtype of BCC.
Understanding the subtype helps your physician determine the most appropriate treatment.
Nodular Basal Cell Carcinoma
This is the most common type.
It often appears as:
- a shiny or pearly bump
- small visible blood vessels
- occasional bleeding
It usually grows slowly and has an excellent cure rate after surgery.
Superficial Basal Cell Carcinoma
This type grows mainly along the surface of the skin.
It often appears as:
- a pink patch
- a slightly scaly area
- an eczema-like lesion
Because it is more superficial, some patients may be candidates for treatments other than surgery, depending on the size and location of the lesion.
Infiltrative Basal Cell Carcinoma
This subtype grows more deeply into the skin with small finger-like extensions that may not be visible on the surface.
Because of its growth pattern, it has a greater chance of recurring if it is not completely removed.
More precise surgical techniques or wider excision margins may be recommended.
Micronodular Basal Cell Carcinoma
This subtype also tends to grow beneath the surface of the skin.
Although it may appear small externally, microscopic extensions can spread beyond the visible lesion.
Careful surgical removal is important.
Morpheaform (Sclerosing) Basal Cell Carcinoma
This is a less common but more aggressive subtype.
Instead of forming a distinct bump, it often looks like:
- a pale scar
- a firm plaque
- an area of thickened skin
The true size of the tumour is often larger than what is visible on the skin.
This type frequently requires specialized surgical techniques to ensure complete removal.
Pigmented Basal Cell Carcinoma
Some BCCs contain brown, blue, or black pigment.
These lesions may resemble a mole or even melanoma.
Despite their darker appearance, they usually behave like other basal cell carcinomas.
What Type of Surgery Will I Need?
The treatment depends on:
- the size of the tumour
- its location
- the subtype
- whether it has been treated before
- your overall health
The most common treatments include:
Standard Surgical Excision
The cancer is removed together with a margin of healthy skin.
The specimen is examined by the pathologist to confirm that the tumour has been completely excised.
What Happens After Surgery?
After the cancer has been removed:
The tissue is examined under a microscope to confirm:
- all cancer has been removed
- the surgical margins are clear
Most patients require no further treatment after complete excision.
Can Basal Cell Carcinoma Come Back?
Yes.
Even after successful treatment, a small percentage of BCCs may recur, particularly if:
- the tumour was very large
- it had an aggressive subtype
- it had grown deeply
- it had been treated previously
When completely removed, the chance of recurrence is generally very low.
Can I Get Another Basal Cell Carcinoma?
Yes.
Having one BCC means your skin has already experienced significant sun damage.
Many patients will develop additional basal cell carcinomas later in life.
You also have a higher chance of developing:
- another BCC
- squamous cell carcinoma
- melanoma
This is why regular skin examinations are recommended.
How Can I Reduce My Risk?
Protect Your Skin From the Sun
Sun protection remains the most effective way to reduce additional UV damage.
Every day:
- Use a broad-spectrum sunscreen with SPF 30 or higher on exposed skin.
- Reapply sunscreen every two hours when outdoors and after swimming or sweating.
- Wear a wide-brimmed hat and UV-protective sunglasses.
- Wear protective clothing whenever practical.
- Seek shade between 10:00 AM and 4:00 PM, when UV radiation is strongest.
- Avoid tanning beds completely.
Examine Your Skin Every Month
Become familiar with your skin.
Watch for:
- new bumps
- sores that do not heal
- bleeding spots
- scaly patches
- changing moles
- any persistent new skin lesion
If you notice any concerning skin changes, arrange an assessment with your family physician or primary care provider, who can determine whether referral to a dermatologist is needed.
Frequently Asked Questions
Can Basal Cell Carcinoma spread throughout my body?
It is extremely uncommon.
Basal Cell Carcinoma almost always remains confined to the skin where it started.
Its main risk is local tissue destruction if left untreated.
Can Basal Cell Carcinoma be cured?
Yes.
The cure rate is very high, especially when it is diagnosed early and completely removed.
Will I need chemotherapy?
No.
Almost all patients are cured with surgery alone.
Advanced treatments are reserved for the very rare cases in which BCC cannot be removed surgically or has spread.
Did I do something wrong?
No.
Basal Cell Carcinoma develops after many years of accumulated sun exposure combined with individual genetic susceptibility.
It is one of the most common medical conditions treated by dermatologists.
Is Basal Cell Carcinoma contagious?
No.
It cannot be spread from one person to another.
Key Take-Home Messages
- Basal Cell Carcinoma (BCC) is the most common and least aggressive type of skin cancer.
- It rarely spreads to other parts of the body, but it continues to grow if left untreated and can damage nearby skin and deeper tissues.
- Surgical removal is the standard treatment and offers an excellent chance of complete cure.
- Early treatment usually results in a smaller operation and a better cosmetic outcome.
- Having one BCC increases your chance of developing additional skin cancers in the future, making lifelong skin surveillance and sun protection important.
A Final Reassurance
Being diagnosed with Basal Cell Carcinoma can be unsettling, but the prognosis is excellent.
In the vast majority of patients, complete surgical removal cures the cancer permanently.
By protecting your skin from future sun damage, examining your skin regularly, and maintaining routine follow-up with your healthcare providers, you can significantly reduce the risk of future skin cancers and detect new lesions at an early, highly treatable stage.
Disclaimer
This handout provides general educational information and is not a substitute for individualized medical advice.
Treatment recommendations vary depending on the size, location, subtype, and pathology of your tumour.
Always follow the treatment and follow-up plan recommended by your treating physician.