In Lima, Peru this week, filming our latest NCDFREE short film on inequalities and progress in cancer care - a collaboration with the UICC (global cancer body) and GlobalRT (a group that aims to increase global access to radiotherapy).
The film will be released in the coming months, but in the meantime I wanted to share some key facts and myths around cancer with you. Debunk some pervasive, perennial misunderstandings on cancer globally…
1. Cancer is not a disease of affluence - but wealth can change the type and outcome
When people think of cancer, they usually think of rich people in rich nations. Actually, the reality is that 70% of all cancer cases worldwide occur in low and middle-income nations, posing an enormous public health and economic burden. Now of course, this is also where a majority of the world’s population lives, but the reality is still that millions of cases of cancer occur in healthcare systems least prepared to treat them (and some would argue find them) and in communities and families least able to cope with the health and financial consequences.
A misunderstanding that not only affects local but also global prioritisation and funding for these conditions in development budgets, philanthropic responses, aid and national health expenditures.
2. It is not about laziness
A classic myth when it comes to cancer and particularly bowel cancer, is that these are diseases of laziness. Actually, there are a myriad of causes - and many we still don’t know or understand. Things like diet, tobacco and alcohol; infections and chronic inflammation; but also environmental pollutants; and genetics.
3. Cancer is not always ‘non-communicable"
Although I talk a lot about NCDs - or non-communicable diseases - some cancers are actually caused by infections. In fact, about one-fifth of all cancers worldwide are caused this way - including cervical and liver cancers, which are paricularly common in poorer nations.
The good news, though, is that the two viruses that cause these cancers are largely preventable by vaccine - hepatitis B and human pappiloma virus.
4. Tobacco is the single biggest, preventable cause of cancer
Causing 22% of all cancer deaths worldwide, the good fight against tobacco, tobacco advertising and the big corporations that make this carcinogen continues.
5. We can prevent many cancers
Some good news, many cancers can be prevented.
30% of cancers are preventable through not using tobacco, having a healthy diet, being physically active, limiting alcohol use and being vaccinated for the most common cancer-causing infections.
These are largely the focuses of public health policies for cancer for which “prevention is better than cure” will always be a core mantra.
6. Early detection and treatment saves lives
Building on prevention, early detection and early access to treatment is of paramount, complementary importance - with treatments falling into three broad groups: surgery, chemotherapy and radiotherapy… Breast, cervical and colorectal cancers, for example, can often be cured if found and treated in the early stages of disease and are far less costly (in terms of health, economic and social costs) if identified quickly.
These challenges are magnified in a context of weaker health systems and limited funding, but it is important to remember that screening and early detection save money and lives - a driving argument for the continued work on ensuring universal prevention and care coverage.
7. Palliative care and pain relief must become universal
Although a large number of cancers are preventable or curable through appropriate policies, lifestyles, screening and treatments - many are not. For this reason, it is also crucial that every person has access to pain relief and palliative care when dying of cancer.
But in reality, many don’t.
This is one area where science has the answers - and it’s not about a lack of technology or understanding, just a lack of funding and global political will. This is a gap that must be closed.
This article is based on the World Health Organization’s cancer fact sheet.