5 Students from West Bengal developed an AI tool to detect early signs of oral cancer using just a smartphone. Their simple school project has now turned into tackling a global oral health problem

What if a smartphone could help spot a possible sign of oral cancer within minutes? Sounds unbelievable, right? However, these five students from Santamayee Girls High School in Purulia, West Bengal, are working on a tool that could make early screening easier, especially in rural areas where access to healthcare can be limited. The students have developed an AI-based system that uses a smartphone camera to look for unusual changes inside the mouth. Their project was recognised as one of the 2026 Ciena Solutions Challenge Sustainability Award winners. Ciena says the system is designed to support early and accessible oral cancer screening in rural communities.

Students from Bengal develop AI-based tool to detect early signs of oral cancer

A person can use a smartphone to take pictures of the inside of their mouth. The AI tool studies the images and looks at features such as colour, shape and texture. If the tool notices tissue that looks unusual, it is likely to flag the area for further medical attention. The tool is not meant to diagnose cancer or replace a doctor.

Instead, the AI tool is designed as an early screening aid that can encourage people to visit a healthcare professional when something looks concerning. The students hope the system can eventually be used at village health camps, schools and community programmes, making basic screening easier to access.


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Why is early detection of oral cancer important?

Oral cancer is a major health concern in India. According to India's National Institute of Cancer Prevention and Research, the country accounts for about one-third of oral cancer cases worldwide. The World Health Organisation has also stressed the importance of finding oral cancer early. Many cases are diagnosed only after the disease has reached an advanced stage, which can make treatment more difficult.

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Tobacco, alcohol and areca nut products are among the major risk factors for oral cancer. The WHO has highlighted the particular risk from smokeless tobacco and areca nut products in South and South-East Asia. For people living in areas with fewer healthcare facilities, a simple screening tool could help raise awareness and encourage them to seek medical advice sooner.

How students from Bengal turn a local problem into a technology project?

The project is part of the Ciena Solutions Challenge, a global programme that asks students to develop solutions to problems affecting their communities. Ciena and education organisation Digital Promise launched the challenge in 2021 to encourage students to use technology and creative thinking to address real-world problems.

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Ciena says the 2026 challenge featured 20 student-led projects from around the world. The Santamayee Girls High School project was among those focused on health and wellbeing. Each winning team received $3,000 to help continue and expand its work. The project also shows how students can use technology that is already widely available. Instead of requiring expensive medical equipment, the team is exploring whether a smartphone and AI can provide a simple first step towards identifying people who may need medical attention.

A screening tool, not a replacement for doctors

It is worth noting that experts have long recognised the value of checking the mouth for unusual changes. However, spotting a suspicious area does not mean that a person has cancer. Further examination by a trained healthcare professional is needed. That is why the West Bengal students' project focuses on early screening and awareness rather than diagnosis.

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Their larger goal is to take the technology beyond the classroom. If it can be developed and properly tested, the students hope it could be used in rural health camps and community programmes where people may otherwise have fewer opportunities for regular screening. The project may still need further testing before it can be used as a medical screening tool. But the idea points to a simple possibility: technology already sitting in people's pockets could help more people recognise when it is time to seek medical care. For five students in West Bengal, a school project has become an attempt to tackle a serious health problem one smartphone image at a time.