Tumour Treating Fields Explained by The Neuro Farmacist
When families first hear about Tumour Treating Fields, or TTFields, it can sound like something from science fiction. At The Neuro Farmacist, Julie Crawshay likes to explain it in everyday language so you can decide, with your team, whether it is worth exploring for your situation.
TTFields is a therapy that uses low-intensity electrical fields, delivered through pads worn on the scalp, in an effort to interfere with the way cancer cells divide. It is a wearable, non-invasive approach rather than a medication or an operation, and it is designed to be used alongside other parts of glioblastoma treatment rather than instead of them.
How the Therapy Is Used
People using TTFields typically wear arrays of adhesive pads on a shaved scalp, connected to a small portable device carried in a bag. The general principle is that the therapy works best when worn for many hours each day, so it becomes part of daily life rather than a clinic-only treatment.
Practical considerations that families often raise include:
- Skin care: keeping the scalp healthy under the arrays and watching for irritation.
- Daily routine: planning charging, carrying the device and adjusting to wearing it consistently.
- Head shaving: ongoing shaving is usually needed for good contact.
- Support: having a carer who understands how to help apply and change the arrays.
Because it is worn so much of the day, some people find the practical and emotional adjustment as significant as the treatment itself. Others settle into a rhythm quickly. There is no single right experience.
Questions Worth Asking
TTFields is not suitable or available for everyone, and access varies by country, by health system and by individual circumstances. That is exactly why an honest conversation with your neuro-oncology team matters more than anything you read online, including here.
Julie Crawshay suggests bringing questions such as:
- Is this an option for my specific diagnosis and stage of treatment?
- How would it fit alongside my current plan?
- What does daily use realistically involve for me and my carer?
- What support, funding or access pathways exist where I live?
It also helps to ask how success would be measured and reviewed, so expectations are clear from the start. Some people value the sense of doing something active every day; others decide the daily commitment is not right for them, and both choices are valid.
The most important thing to remember is that TTFields is one option within a wider, personalised plan. This overview is general education, not medical advice, and it deliberately avoids specific numbers or promises. Always discuss whether this therapy is appropriate for you with your own neuro-oncology team, who understand your full clinical picture and local options.
Written for The Neuro Farmacist by Julie Crawshay.