Squamous Cell Skin Carcinoma: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Squamous Cell Skin Carcinoma?
A dermatologist is a doctor who specializes in skin, hair, and nails, and usually treats squamous cell skin carcinoma. If the cancer has spread or is very large, the dermatologist may work with a surgeon or a cancer doctor. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Squamous cell skin carcinoma is a common type of skin cancer. It starts in flat cells called squamous cells, which sit near the surface of the skin. It usually grows slowly and can often be treated. However, it can spread to other parts of the body if it is not treated. Results differ from person to person. Your doctor can explain what to expect in your case.
Symptoms
The most common sign is a firm, red bump or a scaly, crusted patch on the skin that does not heal. It may bleed easily or form a sore that comes back after healing. These growths often appear on sun-exposed areas such as the face, ears, lips, neck, hands, and arms.
Causes and who gets it
Most of these cancers are caused by long-term exposure to ultraviolet light from sunlight or tanning beds. People with light skin, light hair, and light eyes have a higher risk. Risk also goes up with age, a weakened immune system, a history of sunburns, and certain chemical exposures.
How doctors diagnose it
A doctor will first look at the skin and ask about your history of sun exposure. If the spot looks suspicious, the doctor will do a skin biopsy, removing a small piece of skin to examine under a microscope. A biopsy is the only way to know for sure whether the spot is cancer.
Treatment
Treatment depends on the size of the growth, where it is, and whether it has spread. Many are removed with a simple in-office surgical procedure, or treated by scraping and freezing (cryotherapy). Mohs surgery removes thin layers of skin one at a time until no cancer cells remain. Radiation, or medicated creams for some early, low-risk growths, may also be options.
When to see a doctor
See a doctor if you have a sore that does not heal within a few weeks, a spot that bleeds or crusts repeatedly, or a new growth that keeps getting bigger. Early treatment usually makes care simpler. Regular skin checks are often recommended for anyone who has had one skin cancer.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can examine a suspicious spot, decide whether a biopsy is needed, and refer you to a dermatologist if needed. These practices often offer longer visits and easier scheduling, which can help with follow-up skin checks after treatment.
Common questions
Is squamous cell skin carcinoma dangerous?
It can be serious if not treated, because it can spread to nearby tissue or other parts of the body. Most cases are found early and treated successfully, but outcomes vary.
Can it come back after treatment?
Yes. People who have had one skin cancer have a higher chance of developing another. Doctors often recommend regular follow-up skin exams and daily sun protection.
How can I lower my risk?
Protect your skin from the sun: use sunscreen, wear hats and protective clothing, stay in the shade when the sun is strongest, and avoid tanning beds.
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Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
