Oral Squamous Cell Carcinoma: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Oral Squamous Cell Carcinoma?
Oral squamous cell carcinoma is usually treated by a team of specialists, which may include a head and neck surgeon or ear, nose, and throat doctor along with cancer specialists. An oral surgeon or head and neck surgeon removes the tumor, and radiation and medical oncologists give other treatments.
What it is
Oral squamous cell carcinoma is a type of mouth cancer. It starts in flat cells called squamous cells, which line the inside of the mouth, tongue, and lips. When these cells grow out of control, they can form a lump or sore that does not heal.
Symptoms
The most common sign is a mouth sore that does not heal within two or three weeks. Other signs include a red or white patch, a lump in the cheek or neck, or trouble chewing and swallowing. Only a doctor can tell what is really going on.
Causes and who gets it
The biggest risk factors are tobacco use in any form and heavy alcohol drinking. Infection with certain types of HPV, a common virus, raises the risk of some mouth and throat cancers. Sun exposure raises the risk of lip cancer. Mouth cancer is more common in men and people over 40.
How doctors diagnose it
A doctor or dentist will look inside the mouth and feel the neck for lumps. If something looks concerning, they will take a small tissue sample, called a biopsy, to check under a microscope. Imaging tests such as a CT scan or MRI show whether the cancer has spread.
Treatment
Treatment depends on the size of the tumor and whether it has spread. The main options are surgery, radiation therapy, and chemotherapy. Some people need more than one type of treatment. The care team will explain what to expect based on each situation.
When to see a doctor
See a doctor or dentist if a mouth sore lasts longer than two weeks, or if you notice a lump, a patch, or ongoing pain. Early checks matter because treatment often works better when cancer is found early. Early mouth cancer sometimes does not hurt at all.
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 costs more and often works alongside insurance. Either can be a helpful first stop, with longer visits that make it easier to discuss a sore that will not heal. They can refer you to a specialist if a biopsy or advanced treatment is needed, and stay involved to coordinate care.
Common questions
Is a mouth sore that will not heal always cancer?
No. Most come from less serious causes, such as canker sores. Any sore lasting more than two or three weeks should still be checked.
Can oral squamous cell carcinoma be cured?
Many people are successfully treated, especially when the cancer is found early. Results differ, so talk with a care team about your situation.
Does HPV cause mouth cancer?
Certain types of HPV are linked to some mouth and throat cancers, but most people with HPV never have health problems from it.
Sources
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.
