Oral Cancer: Symptoms, Causes & Treatment | AJ Hospital

Oral Cancer: Symptoms, Causes & Treatment in Mangalore

27 May 2026

Oral cancer is one of the most preventable cancers in India, yet most patients find out about it only when it has already reached an advanced stage. That is because the early signs are painless and easy to ignore.

At A.J. Hospital & Research Centre in Mangalore, our cancer care team is committed to changing this through education, early screening and world-class treatment.

If you use tobacco, areca nut or gutka or have noticed any change in your mouth that won't go away, this guide is written for you.

For everyday tips on keeping your mouth healthy, read our guide on dental and oral health.

 

What Is Oral Cancer?

Oral cancer is cancer that starts in the mouth. It can develop on the:

• Lips

• Tongue

• Gums

• Inner cheeks

• Floor of the mouth (under the tongue)

• Roof of the mouth

It belongs to a group called head and neck cancer. Most oral cancers begin in the thin, flat cells that line the inside of the mouth. When these cells grow out of control, they form a tumour that can spread to the neck and other parts of the body if not treated in time.

For reliable, research-backed information, the National Institute of Dental and Craniofacial Research is a trusted oral cancer guide for patients and families.

Why Oral Cancer Is So Common in India

India has one of the highest rates of oral cancer in the world. A large share of cases here are directly linked to chewing tobacco, areca nut, gutka and betel quid, habits that are very common across Indian communities.

Many patients also seek treatment too late because they either don't know the early symptoms or they put off visiting a doctor.

In Mangalore and Coastal Karnataka, the daily use of areca nut and betel leaf is especially widespread. This makes oral cancer and conditions like oral submucous fibrosis (OSMF) a serious local health concern.

Oral Cancer Causes and Risk Factors

Oral cancer develops when cells in the mouth undergo harmful changes over time. The most common oral cancer causes are:

• Tobacco: Smoking cigarettes, bidis, cigars or pipes exposes the mouth to chemicals that damage cells. 

• Smokeless tobacco: Gutka, khaini, pan masala and other chewed tobacco products are just as harmful as smoking, if not more so.

• Areca nut: Even without tobacco, areca nut alone can cause oral cancer.

• Alcohol: Heavy drinking increases risk, especially when combined with tobacco.

• HPV infection: The human papillomavirus (especially HPV-16) is linked to cancers at the back of the mouth and throat.

• Sun exposure: Long-term sun exposure raises the risk of lip cancer.

• Poor oral hygiene: Rough teeth, broken fillings and ill-fitting dentures can irritate the mouth lining over time.

• Low fruit and vegetable intake: A diet lacking in vitamins A and C may raise cancer risk.

• Weak immune system: People on certain medications or living with HIV have a higher risk.

• Age: Oral cancer is more common in people over 40.

Tobacco, Gutka, Betel Quid and Areca Nut: Understanding the Risk

Does Areca Nut Cause Oral Cancer?

Yes, absolutely. Areca nut (supari) is classified as a confirmed human carcinogen by the International Agency for Research on Cancer (IARC). This is true even when it is eaten without tobacco.

The chemicals in areca nut damage cells in the mouth, cause long-term inflammation and lead to a condition called oral submucous fibrosis (OSMF). Over time, these changes can become cancerous.

Many people believe that "plain" supari or "tobacco-free" pan masala is safe. It is not. Areca nut cancer is a growing public health concern, and any product containing areca nut should be avoided.

When areca nut is mixed with tobacco, betel leaf and lime, as in gutka or betel quid, the risk becomes even greater.

What Is Smokeless Tobacco?

Smokeless tobacco means any tobacco product that is chewed, sucked or placed in the mouth rather than smoked. Common types in India include:

• Khaini: Tobacco mixed with lime, kept between the cheek and gum

• Gutka: A packet blend of areca nut, tobacco and flavourings

• Pan masala (with tobacco): Often sold in small sachets

• Mawa: Areca nut, tobacco and lime mixed

• Zarda: Spiced tobacco used in paan

Many people believe smokeless tobacco is a safer choice than smoking. This is false. Smokeless tobacco contains at least 28 cancer-causing chemicals and is a leading cause of oral cancer in India. Tobacco addiction in any form is harmful and requires proper support to overcome.

Early Signs and Symptoms of Oral Cancer

Knowing the early signs of mouth cancer can save your life. Most early oral cancer symptoms are painless, which is exactly why so many people miss them.

See a doctor if you notice any of the following signs of mouth cancer:

• A mouth sore or ulcer that has not healed in two weeks or more

• A white patch or red patch inside the mouth

• A persistent lump or thickening on the tongue, cheek or gum

• Unexplained bleeding in the mouth

• Numbness or tingling in the mouth, lips or tongue

• Difficulty chewing, swallowing or moving the jaw

• A hoarse voice or sore throat that won't go away

• Loose teeth with no clear dental cause

• A feeling that something is stuck in the throat

• A lump or swelling in the neck that lasts more than a week

Remember: the absence of pain does not mean there is no problem. Many oral cancers are painless in their early stages.

When Is a Mouth Ulcer a Warning Sign?

Ordinary mouth ulcers heal within 7–10 days. A mouth ulcer becomes a warning sign when it:

• Has lasted more than two weeks

• Has hard or raised edges

• Is painless (this is actually more concerning, not less)

• Is accompanied by a neck lump, trouble swallowing or weight loss

• Keeps coming back in the same spot

If your ulcer fits any of these descriptions, please see a doctor. Don't wait.

Oral Cancer Screening and Early Detection

An oral cancer screening is a quick, painless check-up that can find suspicious changes in your mouth before they become serious. It usually takes less than 10 minutes and can be done by a dentist or oral specialist.

During a screening, the doctor will:

• Look carefully at your lips, tongue, cheeks, gums and the floor and roof of your mouth

• Feel the tissues in your mouth and the lymph nodes in your neck

• Sometimes, use a special light or dye to spot abnormal tissue that is hard to see otherwise

If you are a tobacco user, areca nut chewer or heavy drinker, you should get screened at least once a year.

To understand why early detection matters, watch this oral cancer awareness video, which explains symptoms and screening in simple, clear terms.

Oral Cancer Diagnosis

If a suspicious area is found, your doctor will carry out tests to confirm whether it is cancer. The usual oral cancer diagnosis steps include:

• Biopsy: A tiny piece of tissue is removed and examined in a lab. This is the only way to confirm cancer.

• CT scan / MRI / PET-CT: These scans show where the cancer is, how big it is and whether it has spread.

• Endoscopy: A thin camera is used to check the throat and airway.

• X-rays (OPG): To check if the jawbone is involved.

• Blood tests: To assess your overall health before treatment begins.

Getting the right diagnosis early means treatment can start sooner and outcomes are much better.

Types of Oral Cancer

• Squamous Cell Carcinoma

This is the most common type, making up more than 90% of all oral cancers. It starts in the flat surface cells that line the mouth. It can appear as a sore, a rough patch or a white or red area. Squamous cell carcinoma is strongly linked to tobacco and areca nut use.

• Verrucous Carcinoma

This is a slow-growing, wart-like type of oral cancer. It rarely spreads to other parts of the body but can grow deep into local tissue. It is closely associated with long-term use of smokeless tobacco and betel quid.

• Salivary Gland Cancers

These cancers start in the glands that produce saliva, found in the cheeks, jaw and under the tongue. They are less common than squamous cell carcinoma and usually appear as a painless lump in the cheek or jaw area.

• Oral Melanoma

This is a very rare but aggressive cancer that starts in the pigment cells inside the mouth. It often appears as a dark, irregularly shaped patch on the roof of the mouth or gums. It needs specialised treatment and is best caught as early as possible.

Precancerous Conditions

Some changes in the mouth are not yet cancer, but they have the potential to become cancer over time. Finding and treating these early is one of the best ways to prevent oral cancer.

• Oral Submucous Fibrosis (OSMF)

OSMF is caused mainly by chewing areca nut. Over time, fibrous tissue builds up under the lining of the mouth, making it stiff and difficult to open wide. People with OSMF often have a burning sensation in the mouth, have trouble eating spicy food, and find it increasingly difficult to open their mouths fully.

OSMF is a serious condition with a 7–13% chance of turning into cancer if left untreated. If you chew areca nut or gutka and notice any of these signs, please see a doctor.

• Leukoplakia

Leukoplakia is a white patch inside the mouth that cannot be wiped off. While not all white patches are cancerous, some carry a real risk of turning into cancer over time, especially those on the floor of the mouth or the side of the tongue. A biopsy is needed to determine how serious it is.

• Erythroplakia

Erythroplakia is a velvety red patch inside the mouth. It is less common than leukoplakia but carries a much higher risk of being cancerous or precancerous. Any unexplained red patch in your mouth that lasts more than two weeks must be checked by a specialist.

Noticed any of these signs? Don't wait. Our oral cancer specialists at A.J. Hospital, Mangalore, are here to help. A straightforward assessment today could make all the difference. Book a screening consultation →   |   Call us: 0824 2225533 / 0824 2229333

 

---

Oral Cancer Stages

Doctors use stages to describe how far the cancer has spread:

Stage	Tumour size/extent	Lymph node spread	Approx. 5-yr survival
Stage I	≤ 2 cm, mouth only	None	~80%
Stage II	2–4 cm, mouth only	None	~65%
Stage III	Any size OR 1 lymph node	Single ipsilateral node	~40–50%
Stage IV	> 4 cm or invaded deeply	Multiple nodes / distant	< 30%

Early-stage oral cancer responds much better to treatment. This is why catching it early matters so much.

Caught at Stage I, oral cancer is highly curable. If you have any concerns, however small, please don't delay. Early diagnosis consistently means simpler treatment, better outcomes, and lower cost. A.J. Hospital Oncology: 0824 2225533   |   NH-66, Kuntikana, Mangalore - 575004

 

---

Oral Cancer Last Stage Symptoms

In advanced stages, oral cancer causes more severe symptoms. Oral cancer's last stage symptoms include:

• Severe, constant pain in the mouth, jaw or ear

• Extreme difficulty swallowing, making eating very hard

• Very limited ability to open the mouth

• Changed or slurred speech

• Large, hard lumps in the neck

• Rapid unexplained weight loss

• Numbness or weakness in the face or tongue

• Visible sores breaking through the cheek

• Difficulty breathing if the airway is affected

These symptoms need urgent attention. Even at this stage, treatment can ease pain, control the disease and improve quality of life.

Is Oral Cancer Curable?

Yes, oral cancer can be cured, especially when it is found early.

At Stage I or Stage II, many patients achieve full recovery with surgery, radiation therapy or a combination of both. The earlier the cancer is caught, the simpler the treatment and the better the result.

At later stages, treatment becomes more complex, but it can still help significantly, controlling the cancer, reducing pain and helping patients live longer with a better quality of life.

The bottom line: early detection saves lives.

Oral Cancer Survival Rate in India

India's oral cancer survival rate lags behind many other countries, mainly because most patients are diagnosed at an advanced stage.

When caught at Stage I, the five-year survival rate can reach 70–90%. For patients diagnosed at Stage IV, that rate can drop to 20–30% or lower.

These numbers are not meant to frighten; they are meant to motivate. The earlier you act, the better your chances.

Modern Oral Cancer Treatment Options

At A.J. Hospital & Research Centre, oral cancer treatment is planned by a team of specialists, surgeons, radiation oncologists and experts from our Medical Oncology Department who work together to find the best plan for each patient.

Surgery

Surgery removes the tumour and, if needed, nearby lymph nodes in the neck. For larger tumours, reconstructive surgery helps restore the way the mouth looks and works after treatment. Modern techniques allow many patients to regain good function after surgery.

Radiation Therapy

Radiation uses high-energy beams to destroy cancer cells. It can be used alone for small tumours, after surgery to remove any remaining cancer cells or to relieve pain in advanced disease. Advanced radiation techniques like IMRT target tumours precisely with minimal harm to surrounding healthy tissue.

Chemotherapy

Chemotherapy uses medicines to kill cancer cells throughout the body. In oral cancer, it is most often combined with radiation to make treatment more effective. It may also be used in advanced or spread disease.

Targeted Therapy

Targeted therapy for oral cancer uses drugs that block specific proteins driving cancer growth. The most commonly used agent is cetuximab, which targets a protein called EGFR found in many oral cancer cells. This treatment is often combined with radiation or chemotherapy.

Immunotherapy

Immunotherapy for oral cancer helps the body's own immune system fight the cancer. Drugs like pembrolizumab and nivolumab, known as checkpoint inhibitors, have shown strong results in recurrent or advanced head and neck cancers and are now part of standard oncology care in many cases.

A.J. Hospital's multidisciplinary oncology team - surgical oncology, medical oncology, and radiation oncology working together - plans your care from the first appointment through recovery. Enquire about oral cancer treatment →   |   0824 2225533 / 0824 2229333

 

---

Diet for Oral Cancer Patients

Eating well during and after oral cancer treatment is essential. Both the disease and its treatments can make eating painful or difficult, so good nutrition is vital for healing.

A good diet for oral cancer patients includes:

• Soft foods: Mashed dal, curd, porridge, ripe banana, scrambled eggs and smoothies

• Protein-rich foods: Eggs, fish, chicken, lentils and soft paneer, to support healing

• Plenty of water: Especially during radiation, which can cause dry mouth

• Antioxidant-rich foods: Fruits, vegetables, turmeric and ginger

• Avoid irritants: Spicy, acidic and very hot foods worsen mouth soreness

• Supplements: A dietitian can recommend the right ones for your needs

Oral Cancer Prevention Tips

Most oral cancers can be prevented. Here is what you can do right now:

1. Quit all tobacco: Cigarettes, bidis, gutka, khaini, pan masala, all forms must be stopped.

2. Stop using areca nut in any form, with or without tobacco.

3. Limit or avoid alcohol, especially if you also use tobacco.

4. Brush and floss daily and visit your dentist every six months. Good oral hygiene practices are the foundation of oral cancer prevention.

5. Eat more fruits and vegetables to protect cells in the mouth.

6. Use lip balm with SPF if you spend long hours outdoors.

7. Get screened every year if you are in a high-risk group.

8. Consider HPV vaccination, most effective when given before the onset of sexual activity.

When to Consult a Doctor

See a doctor without delay if you have:

• A mouth sore that has not healed in two weeks

• A white or red patch in your mouth that won't go away

• A lump in the mouth, lip or neck lasting more than a week

• Trouble chewing, swallowing or speaking

• Numbness or unexplained pain in the mouth or face

• Unexplained bleeding in the mouth

• Rapid unexplained weight loss with any of the above

Do not wait for pain to develop. Act early.

Oral Cancer Screening in Mangalore

If you live in Mangalore or the surrounding areas and are at risk, A.J. Hospital & Research Centre offers comprehensive oral cancer screening in Mangalore as part of its preventive oncology programme.

Our screening helps to:

• Spot high-risk individuals early

• Detect OSMF, leukoplakia, erythroplakia and other warning signs

• Carry out biopsies and further tests when needed

• Guide patients on quitting harmful habits

Screening is quick, painless and could save your life.

Why Choose A.J. Hospital & Research Centre for Oral Cancer Treatment

A.J. Hospital & Research Centre is one of the most trusted oral cancer hospitals in Mangalore. We offer:

• A full cancer care team: Our oncology specialists, surgeons, radiation oncologists and medical oncologists work together on every case.

• Advanced diagnostics: CT, MRI, PET-CT and biopsy for accurate staging.

• All treatments under one roof: Surgery, radiation, chemotherapy, targeted therapy and immunotherapy.

• Reconstructive surgery to restore function and confidence after treatment.

• Dietary and emotional support from our in-house dietitians and counsellors.

• Honest, clear information about oral cancer treatment cost, your care plan and what to expect.

Conclusion

Oral cancer is serious, but it is also largely preventable and highly treatable when found early. The most important thing you can do is know the warning signs, stop using tobacco and areca nut, and get screened regularly.

At A.J. Hospital & Research Centre, Mangalore, we are here to support you at every step, from your first screening to the end of your treatment and beyond. Our team is committed to giving you the best possible care with honesty, compassion and expertise.

Don't wait. Don't ignore. Take action today.

Book an oral cancer screening at A.J. Hospital, Mangalore

A straightforward check today can spare your family a far harder road later.

0824 2225533 / 0824 2229333

NH-66, Kuntikana, Mangalore, Karnataka – 575004

A full cancer care team:oncology specialists