Melanoma is the most dangerous type of skin cancer. It can grow quickly and spread to other parts of the body.
Although melanoma is the rarest type of skin cancer, it’s also the deadliest because it can spread quickly. However, when melanoma is diagnosed early, treatment is often very successful.
At Goodskin Dermatology, our board-certified dermatologists carefully evaluate skin changes, explain findings clearly and guide patients through next steps with compassion and clarity.
What Is Melanoma?
Melanoma is a type of skin cancer that begins in melanocytes, the cells that give skin its color. This is different from other skin cancers that start in the basal or squamous cells.
When melanocytes are damaged, often from ultraviolet (UV) exposure from the sun or tanning beds, genetic changes can cause them to grow out of control.
Melanoma is more common in adults, but rates have been rising in younger people, especially women. Early detection is critical because melanoma can grow quickly and spread if not treated.
How Common Is Melanoma?
Melanoma is less common than other types of skin cancer, but it causes most skin cancer deaths because of its ability to spread.
According to the American Cancer Society, melanoma accounts for only about one percent of skin cancers but causes a large majority of cancer deaths.
Why Is Melanoma The Most Dangerous Skin Cancer?
Melanoma is considered the most dangerous skin cancer because it can grow quickly and spread (metastasize) to other parts of the body if not found early.
Key reasons melanoma is more serious than other skin cancers include:
- It may look like a normal mole or harmless skin spot at first
- It can grow and change quickly over weeks to months
- It can spread to lymph nodes and internal organs if untreated
- It is more likely to become life-threatening when diagnosed at a later stage
- Early signs can be subtle and easy to miss
When caught early, melanoma is often highly treatable, which is why regular skin checks and early evaluation are so important.
Warning Signs: How To Spot Melanoma Early
The American Cancer Society generally recommends doing a skin self-exam at least once a month (more often if you are at a higher risk of skin cancer).
The ABCDE method is a simple way to spot possible melanoma. It helps you notice changes in moles or skin spots.
- A | Asymmetry: One half of the mole does not match the other
- B | Border: Edges are uneven, blurred or irregular
- C | Color: More than one color or uneven coloring
- D | Diameter: Larger than a pencil eraser, although smaller melanomas can still occur
- E | Evolving: Any change in size, shape, color or symptoms over time
Other warning signs may include:
- A new mole that looks different from others
- A spot that itches, bleeds or does not heal
- A lesion that changes in appearance over weeks or months
Melanoma can look very different from person to person, so any changing or unusual spot should be checked by a board-certified dermatologist right away.
The ‘Ugly Duckling’ Sign
The ugly duckling sign refers to a mole or spot that looks different from all others on your body. Even if it does not meet the ABCDE criteria, it may still need evaluation.
If something stands out or looks unusual for your skin, it is important to have it checked by a board-certified dermatologist.
Risk Factors For Melanoma
Some people have a higher risk of melanoma, but anyone can develop it.
Risk factors include:
- Fair skin, light hair or light eyes
- History of sunburns, especially blistering sunburns
- Use of tanning beds
- Many moles, atypical moles or other skin spots
- Family history of melanoma
- Personal history of skin cancer
- Weakened immune system
UV exposure is the biggest and most preventable risk factor for melanoma.
Melanoma Staging: What It Means For Treatment
Melanoma is grouped into stages. Each stage describes how deep the cancer is and whether it has spread. Earlier stages are easier to treat and have better outcomes.
Staging helps guide the safest and most effective treatment plan.
- Stage 0: Cancer is only in the top layer of skin
- Stage I–II: Cancer is deeper but has not spread
- Stage III: Cancer has spread to nearby lymph nodes
- Stage IV: Cancer has spread to distant organs
How Is Melanoma Diagnosed At Goodskin Dermatology?
Melanoma is diagnosed by a board-certified dermatologist through a careful skin exam.
During a Full-Body Skin Evaluation, your provider examines any suspicious spots and checks your ski for signs of melanoma or other skin cancers.
Most melanomas can be diagnosed with a visual exam and dermoscopy. Dermoscopy is a handheld tool that allows for a closer, more detailed view of the skin structure. This helps identify early warning signs that are not visible to the eye.
If melanoma is suspected, an excisional skin biopsy is performed to confirm the diagnosis. A biopsy is a quick procedure that removes the entire lesion so it can be examined under a microscope.
If needed, additional evaluation, such as lymph node assessment, may be recommended.
At Goodskin Dermatology, our board-certified dermatologists explain every step clearly, so you understand what’s happening and what comes next.
Melanoma Treatment Options At Goodskin Dermatology
Melanoma treatment depends on the stage, size and whether it has spread.
At Goodskin Dermatology, our board-certified dermatologists coordinate care and create treatment plans based on the most effective medical standards.
- Surgical excision
Most early melanomas are treated with surgical excision. The cancer is removed along with a margin of healthy skin to make sure all cancer cells are gone. This is often the only treatment needed for early-stage melanoma. - Immunotherapy and targeted therapy
If melanoma has spread or is more advanced, medications may be needed to helps your immune system find and attack cancer cells. These treatments are usually managed with oncology specialists and are tailored to each patient. - Radiation therapy
Radiation therapy may be used in some cases when surgery is not enough or not possible. It uses high-energy beams to destroy cancer cells and help control growth.
What Happens After Treatment?
After treatment, follow-up care is very important. Regular skin exams help check for recurrence and allow early detection of new skin cancers.
Your dermatologist will create a follow-up schedule based on your unique risk level.
Frequently Asked Questions
Can melanoma be cured if caught early?
Yes. When melanoma is found early and removed, it is often curable with surgery alone. Early detection greatly improves outcomes.
How quickly can melanoma spread?
Melanoma can grow and spread faster than most other skin cancers. Some types of melanoma can change over weeks to months, making early evaluation critical.
Is a changing mole always melanoma?
No. Many changing moles are benign. However, any mole that changes in size, shape, color or symptoms should be checked by a dermatologist.
What is the difference between melanoma and other skin cancers?
Melanoma starts in pigment-producing cells (melanocytes) and is more likely to spread to other parts of the body. Basal cell and squamous cell cancers usually grow more slowly and are less likely to spread.
How often should I have my skin checked if I am high risk?
If you are high risk, your dermatologist may recommend a full-body skin exam every 6 to 12 months. In between visits, monthly self-checks at home can help you notice any new or changing moles.
Get Screened At Goodskin Dermatology
If you notice a new, changing or unusual mole or skin spot, it is important to have it checked right away.
At Goodskin Dermatology, our board-certified dermatologists provide melanoma screening and treatment for patients across the Portland area, including Clackamas, Hillsboro, Troutdale and Beaverton at Cedar Hills Crossing.
