Stomach cancer: what are the usual steps from diagnosis to starting treatment?

Tests for diagnosing stomach cancer include gastric endoscopy (gastroscopy), and abdominal ultrasound and CT help make the diagnosis and staging accurate; after diagnosis, the doctor recommends treatment for stomach cancer according to its stage, including gastrectomy, radiotherapy, and chemotherapy drugs and targeted therapy (Cancer Online Resource Hub stomach cancer page, April 2026).

Financial support and welfare: what to do first?

A first step is to ask the treating doctor or a nurse for a referral to a medical social worker; patients and their families can also apply for medical social services directly to the medical social services unit stationed at a public hospital or specialist clinic, and health care staff at the hospital or clinic, other government departments or welfare agencies can refer a case as well (Social Welfare Department, August 2023).

Medical social workers provide counselling on the emotional, family and caregiving problems that illness brings, help patients plan their discharge, and provide financial or material assistance, for example medical fee waivers, applications for fund subsidies, and referrals for patients and their families to apply for social security allowances (Social Welfare Department, May 2023). For the help available, see Cancer financial support in Hong Kong.

Compiled by this site: when you see the doctor, you can also ask when and where the next follow-up or test will be, and which doctor or case manager to contact; the Hospital Authority has cancer case managers who coordinate the diagnosis and treatment process for cancer patients (government paper submitted to the Legislative Council, July 2025). If you are thinking of moving hospitals or seeing another doctor, you can get the referral letter, test reports and images together first; for the documents needed, see Moving from public to private, or private to public.

What are the usual steps for stomach cancer from diagnosis to starting treatment?

Compiled by this site: based on the sources in the table below, the general steps for stomach cancer from first finding a problem to starting treatment are as follows; the order of the steps and the time they take vary from person to person.

The order of tests and treatment for an individual patient is decided by the treating doctor according to the patient's condition.

Compiled by this site, from the sources named in each row; the Cancer Online Resource Hub lists the usual tests and treatments, and not every patient will have all of them.
StepWhat official sources say
Finding something abnormalSymptoms such as persistent indigestion, rapid weight loss, and bleeding in the stools or black stools may be due to stomach cancer, but may also be caused by more common conditions such as gastritis or stomach or duodenal ulcers, and anyone with suspicions should see a doctor as early as possible (Cancer Online Resource Hub stomach cancer page, April 2026); stomach cancer screening is not recommended for people without symptoms who are at average risk, and people at higher risk can consult a doctor on whether screening is needed (Cancer Expert Working Group on Cancer Prevention and Screening, June 2024)
Tests and diagnosisTests for diagnosing stomach cancer include gastric endoscopy (gastroscopy) (Cancer Online Resource Hub stomach cancer page, April 2026)
StagingAbdominal ultrasound and CT help confirm the diagnosis and determine the stage more accurately (Cancer Online Resource Hub stomach cancer page, April 2026)
Starting treatmentAfter diagnosis, the doctor recommends treatment according to the stage of the cancer, including gastrectomy, radiotherapy, and chemotherapy drugs and targeted therapy (Cancer Online Resource Hub stomach cancer page, April 2026)
CoordinationThe Hospital Authority currently has more than 40 cancer case managers, who coordinate and improve the management process for patients with cancers such as breast cancer, colorectal cancer, gynaecological cancers, blood cancers, musculoskeletal tumours and urological cancers (Government paper to the Legislative Council, July 2025)

How is stomach cancer diagnosed and staged?

Tests for diagnosing stomach cancer include gastric endoscopy (gastroscopy), while abdominal ultrasound and CT help confirm the diagnosis and determine the stage more accurately; after diagnosis, the doctor recommends treatment according to the stage of the cancer (Cancer Online Resource Hub stomach cancer page, April 2026).

For the differences between public and private gastroscopy, see Gastroscopy and colonoscopy: public or private?.

How are Hospital Authority cancer services arranged?

Most Hospital Authority cancer services (for example diagnostic radiology, pathology, endoscopy, surgery, radiotherapy, chemotherapy and palliative care) are provided mainly in regional hospitals or cancer centres (Hong Kong Cancer Strategy 2019, July 2019). The Hospital Authority has multidisciplinary team clinics or meetings for some cancer types; Hospital Authority cancer services will take a patient-centred multidisciplinary team approach, with teams of doctors, nurses, medical social workers, clinical psychologists, radiation therapists, physiotherapists, occupational therapists, dietitians and other professionals caring for the social and psychological needs of patients and their families (Hong Kong Cancer Strategy 2019, July 2019).

Which specialties are involved? How do I look up fees and financial support?

For the specialties related to stomach cancer, see How to choose a stomach cancer doctor; for the difference between Clinical Oncology and Medical Oncology, see What is the difference between Clinical Oncology and Medical Oncology?.

For gastroscopy and CT fees, see Gastroscopy fees compared and CT fees compared; the patients served by the Hospital Authority's Radi Collaboration programme include stomach cancer patients under Hospital Authority care; when the doctor judges it necessary, the patient is invited to take part, the cost is fully subsidised by the Hospital Authority, and patients do not need to apply themselves (Cancer Online Resource Hub computed tomography page); for public, private and financial support compared, see Cancer treatment costs in Hong Kong.

What can I ask the doctor?

Compiled by this site: examples of questions you can ask: What type of cancer has been diagnosed, and what stage is it? Which tests are needed next, and who will arrange them? Will the treatment plan be discussed by several specialties together? Which doctor or case manager will be my contact? What will it cost, and what financial support is available?

For how a family member can help at appointments, see What to prepare for a first doctor's visit; for the documents needed to transfer between hospitals, see Moving from public to private, or private to public; for a second opinion, see How to prepare for a second opinion.

For a fuller checklist of what to ask your doctor and care team after a diagnosis, see what to ask your cancer doctor.

Frequently asked questions

How is stomach cancer diagnosed and staged?

Tests for diagnosing stomach cancer include gastric endoscopy (gastroscopy), while abdominal ultrasound and CT help confirm the diagnosis and determine the stage more accurately; after diagnosis, the doctor recommends treatment according to the stage of the cancer (Cancer Online Resource Hub stomach cancer page, April 2026).

Does the cancer case manager service cover stomach cancer?

At that time, the Hospital Authority's cancer case manager service covered only breast cancer and colorectal cancer (Hong Kong Cancer Strategy 2019, July 2019); the Hospital Authority currently has more than 40 cancer case managers, who coordinate the management process for patients with cancers such as breast cancer, colorectal cancer, gynaecological cancers, blood cancers, musculoskeletal tumours and urological cancers, and the list does not name stomach cancer separately (Government paper to the Legislative Council, July 2025).