Cervical Cancer Screening Reaches Women After Lesion Treatment Stops at Radiotherapy
A positive cervical screening test is only as useful as the treatment that follows. In wealthy countries, women move from abnormal result to cryotherapy, thermal ablation, or radiotherapy within weeks. In many low- and middle-income countries, the same lesion leads to a dead end: no machine, no trained staff, no way to complete the pathway. A related piece on this site, Kenya's Cervical Cancer Screening Stalls at the Pathologist Shortage, shows how diagnostic bottlenecks compound the problem.
Screening Finds Lesions, Treatment Often Stops
Cervical screening looks for viral DNA or abnormal cells on the cervix. When precancerous lesions are found, the goal is to remove them before they progress to invasive cancer. In high-income settings, that removal happens quickly, often in the same visit as colposcopy or under local anesthesia. The equipment is standard, the staff are trained, and the supply chain delivers.
In low-income settings, the same lesion may be detected but not treated. Cryotherapy and thermal ablation are first-line treatments for precancerous lesions, but they require functioning equipment, gas or electricity, and a health worker trained to use them. When those are missing, the lesion remains. Over months or years, it can become invasive cancer.
Once cancer is invasive, radiotherapy becomes essential. It can cure localized disease and control symptoms when cure is not possible. But radiotherapy requires a linear accelerator, a shielded bunker, a stable power supply, and a team of physicists, dosimetrists, and radiation oncologists. That combination is rare in low-income countries.
The result is a survival divide that mirrors the wealth gradient. A woman in Canada or Germany who screens positive and needs radiotherapy will likely start treatment within weeks. A woman in a country with one radiotherapy machine for millions of people may wait months, travel far, or never start at all.
The Treatment Gap After Positive Screen
Cryotherapy and thermal ablation are the backbone of early treatment. They are relatively simple, can be performed by nurses or midwives after training, and cost far less than radiotherapy. The World Health Organization recommends them as first-line treatment for precancerous lesions, and many countries have adopted screen-and-treat protocols.
But screen-and-treat only works if the treatment is available at the point of screening. In practice, many clinics that offer screening do not offer cryotherapy or thermal ablation. A woman may be told she has an abnormal result and then referred to a hospital hours away. That referral is where the pathway breaks.
For invasive cancer, radiotherapy is not optional. It is often the only curative option when surgery is not feasible. In sub-Saharan Africa, the shortfall is stark. As of recent estimates, the region has fewer than one radiotherapy machine per million people, compared with dozens per million in high-income countries. Some countries have no radiotherapy at all.
Patients who need radiotherapy often travel long distances, sometimes across borders. They may need weeks of daily treatment, which means accommodation, food, and lost income. The financial burden alone can force families to abandon care, even when treatment is nominally free.
Documented Delays in Radiotherapy Access
The International Atomic Energy Agency (IAEA) has documented a global shortfall in radiotherapy machines. Its directory of radiotherapy centres shows that many low- and middle-income countries have far fewer machines than needed to meet demand. The gap is not just about equipment; it is also about maintenance, spare parts, and trained staff to operate the machines.
Wait times in some countries stretch to months. A woman with a growing cervical tumor cannot wait that long. During the delay, the cancer may progress from curable to incurable. Some patients are told to come back in three months, by which time the window for curative treatment has closed.
Even when a machine exists, it may be broken. IAEA reports note that many machines in low-income countries are non-functional due to lack of maintenance or power supply issues. A machine that sits idle is no better than no machine at all. The problem is not always acquisition; it is keeping the equipment running.
Some countries have no radiotherapy at all. Patients must travel to another country, often at their own expense. That option is available only to those with resources. The poorest women, who face the highest risk of cervical cancer, are the least likely to access radiotherapy.
Patient Experience Across the Wealth Gradient
In high-income countries, a woman with a positive screen and a need for radiotherapy typically starts treatment within a few weeks. The pathway is mapped: screening, colposcopy, biopsy, staging, radiotherapy. Insurance or national health systems cover most of the cost. Travel is manageable, and patient navigation programs help with scheduling and support.
In low-income countries, the same woman faces a different reality. She may have to pay out of pocket for transport, accommodation, and food. She may lose income while away from home. If she has children, she must arrange childcare. These barriers accumulate, and many women abandon treatment before it is complete.
Survival rates diverge sharply by setting. In high-income countries, the five-year survival rate for cervical cancer is around 70 percent or higher. In many low-income countries, it is below 50 percent, and in some regions, much lower. The difference is not the biology of the disease; it is the availability and completion of treatment.
This site has argued that Ghana's National Health Insurance Excludes Diabetes Drugs It Lists, a reminder that coverage on paper does not always translate to care at the bedside. The same holds for cancer treatment: a policy that promises radiotherapy means little if the machine is broken or the staff are absent.
What Would Close the Radiotherapy Gap
Expanding screening without expanding treatment capacity is a recipe for frustration. Screening programs must be linked to treatment from the start. That means investing in cryotherapy and thermal ablation at the primary care level, and ensuring referral pathways to radiotherapy for invasive cancer.
Radiotherapy infrastructure requires more than buying machines. It needs bunkers, power supply, maintenance contracts, and a trained workforce. Countries like Rwanda and Senegal have made progress by partnering with international organizations and training local staff. But progress is uneven, and many countries remain far behind.
Training and retaining oncology staff is a persistent challenge. Radiation oncologists, medical physicists, and dosimetrists are scarce in low-income countries. Many who train abroad do not return. Solutions include regional training centers, task-shifting where safe, and incentives to retain staff in public systems.
When cure is not possible, palliative care becomes essential. Radiotherapy can relieve pain and bleeding from advanced cervical cancer. Integrating palliative care into cancer programs ensures that patients who cannot be cured still receive comfort and dignity. That is not a consolation prize; it is a core part of care.
Innovations in Treatment and Delivery
New approaches aim to make radiotherapy more accessible. Hypofractionated regimens deliver higher doses per session over fewer days, reducing the number of trips a patient must make. For women who travel long distances, this can mean the difference between completing treatment and abandoning it. However, hypofractionation requires precise planning and modern equipment, which may not be available in low-resource settings.
Another innovation is the use of brachytherapy, which places radioactive sources directly into the tumor. It is a critical component of cervical cancer treatment, but it requires specialized training and afterloading equipment. Many radiotherapy centers in low-income countries lack brachytherapy capacity, forcing patients to go without this essential treatment.
Mobile radiotherapy units have been piloted in some countries, bringing treatment closer to remote populations. These units are expensive to operate and maintain, but for isolated communities, they may be the only option. Evaluations of such programs show mixed results, with challenges in staffing and supply chains.
Telemedicine and remote planning can help bridge the gap in expertise. Radiation oncologists in high-income countries can assist with treatment planning for patients in low-income settings. This approach requires reliable internet and a willingness to collaborate across borders. It is not a substitute for local capacity, but it can provide temporary support.
Actions for Policymakers and Advocates
Map existing radiotherapy capacity, including machine status, staffing levels, and wait times. Without a clear picture, planning is guesswork.
Fund equipment and training together, not separately. A machine without a trained operator is useless, and a trained operator without a machine cannot treat patients.
Ensure referral pathways for positive screens, with clear protocols and transport support. A positive screen must lead to treatment, not to a dead end.
Monitor treatment completion rates, not just screening numbers. A high screening rate means little if women drop out before treatment is finished.
Support patient navigation programs that help women manage travel, costs, and appointments. These programs are inexpensive relative to the cost of untreated cancer.
This article is informational and not personalised medical advice. Readers should consult qualified health professionals for their own care.
