Condition Guide

Oral Cancer

Oral cancer is one of the most common cancers in India. Early detection dramatically improves outcomes. If you have a mouth ulcer or abnormal patch that has not healed in 3 weeks, seek specialist evaluation now.

Do Not Wait

A mouth sore that has not healed in 3 weeks — even if painless — requires medical evaluation. Early stage oral cancers are often painless. Pain is usually a late symptom.

Overview

What Is Oral Cancer?


Oral cancer refers to malignant tumours arising from the lining of the mouth. The most common type is squamous cell carcinoma (SCC), which develops from the squamous cells that line the inner surface of the lips, tongue, floor of mouth, gingiva (gums), buccal mucosa (inner cheek), palate, and oropharynx.

India has one of the highest incidences of oral cancer in the world, largely attributed to the widespread use of tobacco, areca nut (betel nut), and related products. Oral cancer accounts for a significant proportion of all cancers in India, particularly in states where tobacco and areca nut chewing are prevalent.

The most common sites for oral cancer are the tongue (particularly the lateral border — the sides of the tongue), the floor of the mouth, and the buccal mucosa (inner cheek lining). Less common sites include the hard palate, gingiva (gum), and lip.

Critically, oral cancer detected at an early stage (Stage I or II) is associated with significantly better outcomes than advanced stage disease. This makes early recognition of warning signs, and prompt specialist evaluation, among the most important factors in improving oral cancer outcomes.

3 Weeks Ulcer not healing — seek evaluation
Early Detection Significantly improves outcomes
Warning Signs

Symptoms to Watch For

These symptoms do not always mean cancer — but any of them lasting more than 3 weeks requires specialist evaluation. Earlier evaluation means better outcomes.

Non-Healing Ulcer

A mouth ulcer that does not heal within 3 weeks is the most common early sign of oral cancer. Any persistent ulcer must be evaluated.

White Patch (Leukoplakia)

White patches on the tongue, gum, or inner cheek that cannot be wiped off. Some white patches are premalignant and require biopsy.

Red Patch (Erythroplakia)

Red velvety patches in the mouth carry a higher risk of malignancy than white patches and require prompt biopsy.

Difficulty Swallowing

Persistent difficulty or pain with swallowing (dysphagia) may indicate a tumour in the mouth, tongue, or throat affecting swallowing mechanics.

Lump in the Neck

An enlarged lymph node in the neck that persists for more than 3 weeks may indicate spread of oral cancer to the cervical lymph nodes.

Numbness or Altered Sensation

Persistent numbness, tingling, or altered sensation in the lip, tongue, chin, or cheek without apparent cause may indicate nerve involvement by a tumour.

Risk Factors

Who Is at Risk?

Understanding risk factors is the first step in prevention. Reducing or eliminating modifiable risk factors significantly lowers the probability of developing oral cancer.

Tobacco Use Very High

Smoking cigarettes, bidis, or using chewing tobacco is the single largest risk factor for oral cancer. Risk increases directly with amount and duration of use. Smokeless tobacco products are particularly associated with cancers of the buccal mucosa (cheek lining) and gingiva.

Areca Nut & Betel Leaf (Pan, Gutka) Very High

Chewing areca nut (supari) with or without betel leaf and tobacco is a major risk factor for oral cancer and oral submucous fibrosis, particularly prevalent in India. Gutka and pan masala products with areca nut carry significant carcinogenic risk.

Alcohol Consumption High

Alcohol use independently increases oral cancer risk, and the combination of tobacco and alcohol has a synergistic (multiplicative) rather than simply additive effect on cancer risk.

HPV Infection Moderate

Human papillomavirus (HPV), particularly HPV-16, is associated with oropharyngeal cancers (base of tongue, tonsil). HPV-associated oral cancers tend to affect younger patients without traditional risk factors.

Poor Oral Hygiene Contributing

Chronic irritation from sharp or broken teeth, ill-fitting dentures, or poor oral hygiene may contribute to localised tissue changes that increase cancer risk when combined with other risk factors.

Oral Submucous Fibrosis (OSMF) Pre-malignant

OSMF is a pre-malignant condition strongly associated with areca nut chewing. It causes progressive fibrosis of the mouth lining, restricted mouth opening, and carries a significant risk of malignant transformation into oral cancer.

When to See a Doctor Urgently

Seek immediate specialist evaluation if you have any of the following:

  • A mouth ulcer or sore that has not healed in 3 weeks or more
  • A white or red patch in the mouth that persists beyond 3 weeks
  • A painless lump or swelling in the mouth, tongue, or neck
  • Unexplained difficulty in swallowing, chewing, or speaking
  • Persistent bleeding from the mouth without apparent cause
  • A tooth that has become progressively loose without gum disease
Investigation & Staging

How Is Oral Cancer Diagnosed?

Accurate diagnosis and staging is essential before any treatment decision is made.

Clinical Examination

Thorough examination of the entire mouth, tongue, floor of mouth, palate, and oropharynx. Palpation of the neck for lymph nodes. Assessment of mouth opening range and swallowing.

Biopsy

A tissue sample taken from the suspicious area under local anaesthesia and sent for histopathological examination. Biopsy is the only definitive method to confirm or rule out cancer.

Imaging

CT scan and MRI of the head and neck to assess tumour size, depth, bone involvement, and lymph node status. OPG for jaw bone assessment. PET-CT for distant metastasis screening in advanced cases.

Staging

Staging (Stage I–IV) is determined by tumour size, depth of invasion, lymph node involvement, and distant spread. Staging guides treatment planning, which is discussed in a multidisciplinary setting.

Treatment

Treatment of Oral Cancer


Surgery is the primary treatment for most oral cancers. The goal of surgery is to remove the tumour completely with clear margins (a border of normal tissue around the tumour), to give the best chance of cure and prevent local recurrence.

For early-stage oral cancer, surgery alone may be curative. For more advanced cancers, surgery is often combined with radiation therapy, chemotherapy, or both (multimodal treatment), typically coordinated with a multidisciplinary oncology team.

Primary Tumour Resection Surgical removal of the oral cancer with adequate margins — partial glossectomy, floor of mouth resection, buccal mucosectomy, marginal or segmental mandibulectomy depending on site and extent.
Neck Dissection Surgical removal of cervical lymph nodes that may harbour cancer spread. May be selective or comprehensive depending on clinical and imaging findings.
Reconstruction Restoration of the surgical defect using free microvascular flaps (e.g., free fibula flap for jaw reconstruction, anterolateral thigh flap for tongue/floor of mouth), regional flaps, or local flaps to restore form and function.
Head & Neck Oncosurgery Service →
Common Questions

Oral Cancer – Frequently Asked Questions

Concerned About a Mouth Symptom?

Do not delay. A non-healing mouth ulcer, white patch, or neck lump lasting more than 3 weeks requires specialist evaluation. Book an appointment with Dr. Abhisek Chatterjee at Rampurhat today.