Skin Cancer Symptoms I Should Not Ignore

Have a spot that will not heal or keeps changing?

Have it evaluated by Dr. Murtaza Shakir, a board-certified general surgeon and surgical oncologist, in Katy or Sugar Land. Call (713) 955-9191, or send your details and our team will call you back.

THE SHORT ANSWER

The skin cancer symptoms you should not ignore are a new or changing mole or spot, a sore that does not heal within a few weeks or keeps coming back, and a bump or patch that bleeds, crusts, looks shiny or scaly, or looks different from your other spots. Most are painless. A doctor’s exam, and a biopsy when needed, is the only way to know for sure.

What Is Skin Cancer?

Skin cancer is the uncontrolled growth of abnormal skin cells, most often triggered by damage from ultraviolet (UV) radiation from the sun, sunlamps or tanning beds. The skin is the body’s largest organ and acts as a protective barrier, but years of UV exposure can damage skin cells over time.

The three most common types are:

Basal cell carcinoma: the most common type. It usually grows slowly and rarely spreads, but it can damage nearby tissue if left alone.
Squamous cell carcinoma: also common. It can grow more quickly and, in some cases, spread if not treated.
Melanoma: much less common, but more likely to invade nearby tissue and spread. The National Cancer Institute notes that melanoma causes most skin cancer deaths.

Skin cancer is the most common cancer overall, yet it is also one of the most preventable and most treatable when caught early. That is why noticing symptoms early matters.

Why Are Skin Cancer Symptoms So Often Overlooked?

Skin cancer symptoms are often overlooked because they look like ordinary, harmless skin problems and usually do not hurt. A new spot, mole or sore rarely seems alarming, especially when it is painless.

Many people assume a change comes from aging, an allergy, an insect bite or a minor injury. Because skin cancers tend to develop gradually and without discomfort, they are frequently ignored until they become larger or harder to miss. The useful question is not “does it hurt?” but “is it new, is it changing, and is it going away?”

What Are the Most Common Skin Cancer Symptoms?

The most common skin cancer symptoms are changes in the appearance, size, color or texture of the skin that persist over time. Symptoms vary by type, but these changes should always be taken seriously:

A new growth or spot on the skin
A change in an existing mole
Persistent itching, tenderness or pain in one specific area
A lesion that bleeds, oozes or crusts

None of these automatically means cancer. Many turn out to be benign. But any change that persists should be evaluated by a healthcare professional rather than watched indefinitely at home.

Which Mole Changes Can Signal Melanoma?

Mole changes that can signal melanoma are captured by the ABCDE warning signs, with change over time being the most important. Melanoma, the most serious form of skin cancer, often begins in or near an existing mole or as a new dark spot. Doctors recommend watching for change rather than judging a mole by appearance alone.

Asymmetry: one half looks different from the other
Border: irregular, uneven or poorly defined edges
Color: changing color, or several colors within one mole
Diameter: an increase in size or thickness. Melanomas are often larger than a pencil eraser (about 6 mm), though some are smaller when found.
Evolving: any noticeable change over time

Any mole that looks different from the others on your body, or that changes over weeks or months, should be checked. For photos and more detail, read what melanoma looks like early.

Why Is a Sore That Will Not Heal a Warning Sign?

A sore that does not heal, or that heals and then comes back, is one of the classic signs of basal cell or squamous cell carcinoma and should never be ignored. These cancers often appear as open sores, scaly patches or raised lesions that may seem to heal for a while and then return.

Warning signs include:

Sores that bleed, ooze or crust
Lesions that remain open for several weeks
Red, irritated or rough, scaly patches that do not improve
Shiny, pearly or waxy bumps, or a cluster of shiny bumps
A firm, dome-shaped or wart-like growth
A flat mark that looks like a scar, or a change in an old scar

These lesions show up most often on sun-exposed skin such as the face, ears, scalp, neck, arms and hands. Squamous cell carcinoma can also develop in long-standing wounds and scars, especially burn scars, which is one reason a non-healing wound deserves evaluation.

Worried About a New or Changing Spot?

Dr. Murtaza Shakir evaluates suspicious skin lesions for patients from across the Houston area. Request a consultation in Katy or Sugar Land.

Request a consultation → (713) 955-9191

What Are the Less Obvious Skin Cancer Symptoms?

Less obvious skin cancer symptoms include sensations such as itching or tenderness without a visible cause, and changes in places that are easy to miss or rarely see the sun. Some skin cancers feel subtle rather than look dramatic.

Ongoing itching, sensitivity, stinging or localized pain without an obvious reason
Changes in sensation, such as numbness or tenderness
A dark streak under a fingernail or toenail, or darker skin spreading around a nail
Firm or raised lumps beneath the skin
Areas of thickened skin or scar-like patches
Spots on the scalp, the palms or the soles of the feet

In people with darker skin, melanoma more often appears on the palms, the soles or under or around the nails, according to the American Academy of Dermatology. Regular self-checks, using a mirror or a partner for hard-to-see areas, and professional skin exams help catch these subtle changes early.

Who Is at Higher Risk for Skin Cancer?

People with more lifetime UV exposure, lighter skin or a personal or family history of skin cancer are at higher risk, and should pay closer attention to skin changes. Higher-risk groups include:

People who spend significant time in the sun or have a history of frequent sunburns
People with fair skin, light hair or light-colored eyes
People with a personal or family history of skin cancer
People with many moles or atypical moles
People who use or have used tanning beds
People with weakened immune systems

Knowing your risk factors can guide sun protection and encourage routine skin evaluations so suspicious changes are caught early. Living in a sunny climate such as Southeast Texas is another reason to make skin checks a habit.

When Should I See a Doctor, and How Is Skin Cancer Diagnosed?

See a doctor if a skin change persists, worsens or simply seems unusual to you. Early evaluation tells you whether a change is harmless or needs further investigation. Make an appointment for:

A mole or spot that changes in size, color or shape
A sore that does not heal within a few weeks
A lesion that bleeds or crusts without an injury
A new or rapidly growing skin growth

Skin cancer is rarely an emergency, but a spot that is growing quickly, bleeding or forming an open sore should be seen promptly rather than watched for months.

The doctor first examines the spot and the rest of your skin, asks how long it has been there and how it has changed, and may use dermoscopy, a lighted magnifying tool, for a closer look. A skin biopsy is the only way to confirm cancer. Depending on the spot’s size and location, part or all of it is removed and sent to a pathologist. Surgeons often prefer to remove the entire spot when practical, so the pathologist can see its full depth and edges. Learn more about evaluation and removal of skin lesions, masses and cysts.

Why Does Early Detection Matter So Much?

Early detection matters because many skin cancers found early can be treated effectively with minor procedures, while a delayed diagnosis may allow cancer to grow deeper into the skin or spread, making treatment more complex.

Finding skin cancer early usually means:

Less invasive treatment options
Higher treatment success rates
A lower risk of the cancer spreading
Better cosmetic results, especially on the face

When surgery is needed for melanoma or more advanced skin cancers, care may involve a surgical oncology evaluation. Regular self-exams and professional skin checks remain the most important tools for catching problems early.

Where Can I Have a Suspicious Spot Checked in Katy, Sugar Land or Houston?

Patients from across the Houston area can schedule a skin evaluation with Dr. Murtaza Shakir at the Katy or Sugar Land office. Dr. Shakir is a board-certified general surgeon and is board certified in Complex General Surgical Oncology.

Take a clear, dated photo of the spot so changes are easier to track
Note when you first noticed it, and whether it has bled, crusted or changed
Mention any personal or family history of skin cancer or atypical moles

Learn more about general surgery at the practice, or call (713) 955-9191 to take the next step for your skin health.

Questions to Ask Your Doctor About a Suspicious Skin Spot

Does this spot look like basal cell carcinoma, squamous cell carcinoma, melanoma or something benign?
Do you recommend a biopsy, and will you remove the whole spot or a sample?
When and how will I get the pathology results?
If it is cancer, what treatment do you expect, and will I need more surgery?
How should I care for the biopsy or excision site?
Given my risk factors, how often should my skin be checked?

Frequently Asked Questions

Does skin cancer hurt?

Usually not, especially early on. Most skin cancers are painless, though some itch, sting, feel tender or bleed. Lack of pain is not a reason to ignore a new or changing spot.

How long should a sore take to heal before I worry?

Most minor scrapes and sores heal on their own fairly quickly. A sore that is still open after a few weeks, or that heals and keeps coming back, should be checked by a doctor.

Can skin cancer look like a pimple?

Yes. Basal cell carcinoma in particular can look like a shiny or pearly bump that seems like a pimple, but it does not go away, or it bleeds and scabs repeatedly. A bump that lingers for weeks deserves an exam.

Can skin cancer appear where the sun does not shine?

Yes. Melanoma can appear on the soles of the feet, the palms and under the nails, and squamous cell carcinoma can develop in old scars or long-standing wounds. This is why full-body skin checks matter.

What kind of doctor removes skin cancer?

Dermatologists and surgeons both remove skin cancers. A general surgeon or surgical oncologist can biopsy and excise suspicious lesions and manage cancers that need wider removal. See the guide to skin lesions, masses and cysts.

Key Takeaway

Skin cancer symptoms you should not ignore include a new or changing mole, a sore that does not heal or keeps returning, and a bump or patch that bleeds, crusts or looks shiny, scaly or different from your other spots. Most are painless, so look for change rather than pain, and have any persistent spot checked, because skin cancer is highly treatable when found early.

Sources and Further Reading

This article is general education, not personal medical advice. For severe abdominal pain, fever with abdominal pain, heavy bleeding, or yellowing of the skin or eyes, seek emergency care.

Meet the Surgeon

Dr. Murtaza Shakir is a board-certified General Surgeon and is board certified in Complex General Surgical Oncology. He earned his medical degree at Aga Khan University, completed General Surgery residency at Riverside Methodist Hospital in Columbus, Ohio, and a two-year Surgical Oncology fellowship at the University of Pittsburgh Medical Center. He sees patients at Surgical Associates of Southern Texas in Katy and Sugar Land.

Schedule a Skin Lesion Evaluation

Have a new, changing or non-healing spot checked by Dr. Shakir in Katy or Sugar Land.

This page provides general information and is not a substitute for medical advice. For severe abdominal pain or other emergencies, call 911 or go to the nearest emergency room. Last updated October 16, 2026.