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Colorectal Cancer

Colorectal cancer is a disease in which cells in the colon or rectum grow out of control and form a tumour. It usually begins as a small growth called a polyp on the inner lining of the bowel, and most colorectal cancers are adenocarcinomas that start in the cells that make mucus.
Medically reviewed by Dr Thapana Tangshewinsirikul (Dr Tom), Oncology Director. Last reviewed 2026-09-30.
Doctor in navy scrubs and a surgical mask sits in front of a patient in a black leather chair having a conversation.
Dr Tom consulting with a patient at Verita Life, Bangkok.

01 / Overview

About colorectal cancer

Also known as: bowel cancer, colon cancer, rectal cancer, colorectal adenocarcinoma.

Colorectal cancer is a form of cancer that affects the colon or rectum and can require surgery and/or conventional treatments, depending on the stage and progression. At Verita Life, we structure integrative cancer therapies around the patient and their diagnosis to develop a personalised programme tailored to the individual.

In a medically supervised environment, our team will work to shape supportive therapies around current treatment pathways, overall health status, and future goals.

02 / Types

Colorectal Cancer types

Colorectal cancer can begin in the colon or rectum, often developing from abnormal growths in the polyps. These cancers can differ based on the stage, location, and biological behaviour, such as:

  • Colon cancer

    Cancer that often develops from abnormal growths in the large intestine (colon). Usually treated with surgery first, with chemotherapy after for higher-risk stages.
  • Rectal cancer

    Cancer that grows in the final portion of the large intestine, known as the rectum.. Often treated with chemotherapy and radiation before surgery to shrink the tumour.
  • Early-stage cancer

    A type of colorectal cancer that is confined to the inner layers of the colon or rectum.
  • Locally advanced colorectal cancer

    Colorectal cancer that has spread to the bowel wall or other nearby tissues.
  • Metastatic colorectal cancer

    Colorectal cancer that has spread to other parts of the body.

03 / Symptoms

Colorectal Cancer symptoms

Early colorectal cancer often causes no symptoms, which is why screening matters. When symptoms appear they can include:

  • Blood in the stool, bright red or very dark
  • A change in bowel habits: diarrhoea, constipation, or a feeling that the bowel does not empty completely
  • Stools that are narrower or a different shape than usual
  • Abdominal discomfort such as gas pains, bloating, fullness, or cramps
  • Weight loss for no known reason
  • Fatigue, or anaemia found on a blood test
  • Vomiting

These symptoms are often caused by conditions other than cancer, such as haemorrhoids or infection. A change that lasts more than a few weeks should be checked.

04 / Stages

Colorectal Cancer stages

The stage describes how far the cancer has grown through the bowel wall, whether lymph nodes are involved, and whether it has spread to distant organs. It is worked out from scans and from the tissue removed at surgery.

Stage 0 is cancer in the innermost lining only. Stages I to III are cancers of increasing depth and lymph-node involvement that have not spread beyond the bowel and nearby nodes. Stage IV has spread to distant organs, most often the liver or lungs.

Tumour tests such as microsatellite instability (MSI) and RAS or BRAF mutations help decide which medicines will work.

Stages we support: Stage I, Stage II, Stage III, Stage IV, Metastatic.

05 / Conventional care

Conventional treatment

Colorectal cancer treatment depends on where the cancer is, the stage, the tumour’s biomarkers, and your overall health. An oncology team plans it, usually combining several of the treatments below. Verita Life does not replace this care. Our therapies are designed to support it.

Surgery

Removal of the section of bowel containing the cancer together with nearby lymph nodes. Very small early cancers can sometimes be removed during a colonoscopy. A colostomy is needed only when the bowel cannot be rejoined.

Chemotherapy

Medicines that kill fast-growing cells, given after surgery to lower the risk of the cancer returning, or as the main treatment for cancer that has spread.

Radiation therapy

High-energy beams used mainly for rectal cancer, often with chemotherapy before surgery to shrink the tumour.

Targeted therapy

Medicines that block specific proteins driving the cancer, chosen according to the tumour’s biomarkers and used mostly for advanced disease.

Immunotherapy

Medicines that help the immune system attack the cancer, effective for the minority of colorectal cancers with high microsatellite instability.

Ablation and other local treatments

Heat, cold, or focused radiation used to destroy small deposits, most often in the liver, when surgery is not possible.

06 / Verita Life care

Your care at Verita Life

Patient sits in a black leather chair having a conversation with a medical professional in scrubs who is sitting in front of her.
Verita Life, Bangkok

Verita Life’s approach to colorectal cancer support

Colorectal cancer is a blanket term for any colon or rectal cancer and it presents differently in every patient. While some cases are detected early and remain contained to the bowel or colon, advanced stages can spread to the surrounding tissues or organs. We will build your personal care programme around you, the stage of your cancer, and the diagnosis you have received.

When you choose Verita Life, our supportive care is structured around:

Comprehensive case evaluation
We will use diagnostic findings, imaging, treatment history, and your own goals to assess what supportive options are best for you.
Flexibility around existing treatment schedules
Our therapies will be built around your current treatment plans at a time that works for you.
Adaptable programme design
If your situation, wellness, or overall wellbeing changes, we are here to adjust your programme because your comfort is our main goal.

Why choose Verita Life for colorectal cancer support?

  • Structured programmes that grow with you: Our team will only start alternative colorectal therapies once your case is evaluated and we will continue to evaluate your case and alter your treatment on an ongoing basis.
  • Therapies that complement your current treatment: We will only deliver care that complements your current or previous treatment.
  • Focus on stability and monitoring: We provide a comfortable setting where your progress can be monitored.
  • Attention to healthier practices in recovery: Our on-site chefs and expert nutritionists will create three fresh and organic meals a day for you, tailored to your exact dietary needs and treatment plan.
More about care at Verita Life

What to expect from supportive therapies with Verita Life?

First things first, our medical team will evaluate your medical records and treatment history, before outlining an alternative colorectal cancer programme that works for your needs, which will be adjusted based on your response and changes in medical circumstances.

Throughout your care at Verita Life, we place an emphasis on maintaining physical ability, supporting your energy levels, and managing the practical side of colorectal cancer.

07 / Therapies

Treatments and therapies

Treatment for colorectal cancer care at Verita Life

Verita Life’s integrative colorectal cancer treatments incorporate medically-backed traditional therapies with holistic therapies designed to complement conventional care. Our colorectal cancer treatments include:

Metronomic Therapy
Metronomic chemotherapy is an approach to cancer treatment in which chemotherapy is given at a lower dose, but more frequently and with shorter or no extended breaks between treatments.
Metabolic Treatment
Metabolic approaches investigate how cancer cells obtain and use energy and nutrients. Cancer cells behave very differently to healthy cells, often heavily relying on glucose and alter their metabolic pathways in order to grow more rapidly than healthy cells. This is a broad area of research, not a single established treatment or diet and at Verita Life we use metabolic approaches within our wider, personalised treatment plans.
Local Body Hyperthermia
Local body hyperthermia is a type of integrative therapy designed to work alongside both integrative oncology care and conventional cancer treatments. Local body hyperthermia is a targeted heat-based therapy that delivers controlled heat to specific areas of the body.
IPT & Low-Dose Chemotherapy
Insulin potentiation therapy, or IPT, uses insulin alongside lower doses of chemotherapy as part of an integrative cancer treatment approach.
Herbal Cancer Therapy
Following years of research, our medical team have developed specific herbal treatment protocols to address varying types of tumours. We use proven compounds that stem from all natural herbal ingredients such as curcumin, quercetin and other anti-cancer therapies.
Biological Treatment
Biological treatments are supportive regimens that can sometimes fall under immunotherapy due to their nature, and work by harnessing the body's natural immune system or targeting precise molecular pathways involved in cancer growth.
Natural Killer Cell Therapy
Natural Killer (NK) cells are a type of lymphocyte, or white blood cell, that play a major role in the immune system by targeting and killing infected cells and cancer cells.

The treatments below are used across cancer types. Which ones apply to you is decided in your consultation.

Explore treatment families

All treatments

08 / Patient stories

Patient stories

Patient story 01 / 03

09 / Questions

Questions patients ask

Do Verita Life provide care for colon and rectal cancer?

Yes, we have treated many patients with both colon and rectal cancer at every stage. You can find out more on the Patient stories page or reach out to our team for more information.

Can I seek integrative care after colorectal surgery or chemotherapy?

Yes, our therapies and treatments are designed to work in conjunction with conventional approaches rather than replacing them. The best advice we can give is to book a free consultation with one of our Doctors, as this will give you a second opinion and mean you can act fast and support your overall wellbeing and immune system whatever route you decide to take.

Am I eligible for colorectal treatment at Verita Life?

As all of our treatment programmes are built around you as an individual, we will need to see your medical records and your current diagnosis to determine how we can support you, but it’s likely we will be able to support in some way.

Can colorectal patients seek supportive care during chemotherapy?

Each case depends on the individual, but after a full assessment of your health and clinical assessment if we can help, we will.

10 / Sources

Sources and medical review

Medically reviewed by Dr Thapana Tangshewinsirikul (Dr Tom), Oncology Director. Last reviewed 2026-09-30.

  1. National Cancer Institute. Colon Cancer Treatment (PDQ®) – Patient Version
  2. National Cancer Institute. Rectal Cancer Treatment (PDQ®) – Patient Version
  3. World Health Organization. Colorectal cancer fact sheet

11 / Articles and resources

Articles and resources

Care at Verita Life

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Our doctors read your diagnosis, imaging, and treatment history before anything is proposed. Nothing on this page is a substitute for your oncologist’s advice.
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