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After Stomach Cancer Treatment
For some people with stomach cancer (also known as gastric cancer), treatment can remove or destroy the cancer. The end of treatment can be both stressful and exciting. You may be relieved to finish treatment, but it can be hard not to worry about cancer coming back. This is a very common concern.
For other people, cancer might never go away completely. Some people may get regular treatment to try to keep the cancer in check for as long as possible and to prevent or limit any problems it might cause. Learning to live with cancer that does not go away can be difficult and very stressful.
No matter your situation, there are steps you can take to live well, physically and emotionally.
Follow-up care after stomach cancer
Whether you’ve completed treatment or not, your doctors will want to watch you closely. Talk to them about developing a survivorship care plan for you. This plan can guide your next steps after treatment, including follow-up appointments and ways to stay healthy.
A survivorship care plan might include:
- A suggested schedule for follow-up exams and tests
- A timeline for other tests, such as screening for other cancers, or monitoring for long-term health effects from your cancer or its treatment
- A list of possible late or long-term side effects, including what to watch for and when you should contact your doctor
- Diet and physical activity suggestions
- Reminders to keep seeing your primary care provider (PCP) for regular health care and cancer screening tests.
What to expect during follow-up visits
If you have finished treatment, most doctors recommend follow-up visits every 3 to 6 months for the first few years, and then less often. It’s very important to go to all of your follow-up appointments.
These visits usually include a physical exam and review of any symptoms you’re having. Lab tests and other exams, such as upper endoscopy, might also be done or ordered at this time to look for signs of cancer or treatment side effects. Imaging tests such as CT scans are not usually needed at each visit, but they might be done if you have any suspicious symptoms or physical findings.
During these visits, your doctors will ask questions about any problems you are having. Almost any cancer treatment can have side effects. Some might last for a short time, but others can last longer. Your follow-up visits are a good time for you to ask questions and talk about any changes, problems, or other concerns you have.
Help with nutrition issues
For many people, stomach cancer and its treatment can affect how they eat and absorb nutrients. Nausea can be a problem during and after some treatments, and some people lose their appetite (as well as some weight). You might also find you need to change the way you eat, such as eating smaller, more frequent meals instead of a few larger ones each day.
Some people may need additional help to make sure they get the nutrition they need. For example, they might need nutritional supplements. Some people may even need a feeding tube, called a jejunostomy tube (or J-tube), put into the small intestine. This is done through a small hole in the skin over the abdomen during a minor operation. A J-tube allows liquid nutrition to be put directly into the small intestine to help prevent weight loss and improve nutrition. Less often, the tube may be placed into the lower part of the stomach instead. This is known as a gastrostomy tube or G-tube.
Your cancer care team may refer you to a dietitian, an expert in nutrition, who can help you adjust to changes in your eating habits and can give you ideas on how to deal with some of the nutrition issues that might arise from cancer or its treatment.
If you have lost or are losing weight, or if you’re having trouble eating, do the best you can. Eat what appeals to you. Eat what you can, when you can. You might find it helps to eat small portions every 2 to 3 hours until you feel better. Try to keep in mind that these problems usually improve over time.
Your doctor or dietitian may also recommend that you stay upright for some time after eating. Your health care team can help you adjust your diet if you are having problems eating.
If part or all of your stomach is removed
Some people with stomach cancer have problems with nausea, diarrhea, sweating, and flushing after eating. This is called dumping syndrome. When part or all of the stomach is removed, the food that is swallowed quickly passes into the intestine, leading to these symptoms after eating. This often gets better over time, although some people might still need to take medicines to help with long-term diarrhea.
People who have had surgery, especially if they had the upper part of their stomach removed (in either a subtotal or total gastrectomy), will probably need to have blood work done regularly to check their vitamin and mineral levels. Some people might need vitamin supplements, which could include B12 injections. (The pill form of vitamin B12 isn’t absorbed into the body if the upper part of the stomach has been removed.)
Questions to ask your care team
- Are there any limits on what I can do?
- What type of follow-up will I need after treatment?
- How often will I need to have follow-up exams and imaging tests?
- Will I need any blood tests?
- What symptoms should I watch for?
- Where can I get help for eating or nutrition issues?
- How will we know if the cancer has come back?
- What are my options if the cancer comes back?
Staying prepared and organized
Even if you’ve completed treatment, it’s still important to be organized and stay on top of your medical history. Keeping your records and health insurance coverage in order makes it easier to manage follow-up care, future checkups, and any new concerns that may come up.
Keep your health insurance
It’s very important to have health insurance as a stomach cancer survivor. It can help cover the cost of follow-up visits, tests, and any care you may need in the future. No one wants to think about cancer coming back, but it’s best to be prepared.
Save your medical records
At some point, you may see a new doctor who doesn’t know your cancer history. Keep copies of your medical records or have access to them so you can easily share the details of your diagnosis and treatment when needed.
Can I lower my risk of stomach cancer progressing or coming back?
If you have (or have had) stomach cancer, you probably want to know if there are things you can do that might lower your risk of the cancer growing or coming back, such as exercising, eating a certain type of diet, or taking nutritional supplements.
Not enough is known about stomach cancer at this time to say for sure, but there are things you can do that might help.
Eating a diet rich in fruits and vegetables, staying at a healthy weight, getting regular physical activity, and avoiding or limiting alcohol are all linked with a lower risk of getting stomach cancer, although we don’t know if these types of changes affect the risk of stomach cancer progressing or coming back. However, we do know that they can have positive effects on your health that can extend beyond your risk of cancer.
Tobacco use has clearly been linked to stomach cancer, so not smoking might help reduce your risk. We don’t know for certain if this will help, but we do know that it can help improve your appetite and overall health. It can also reduce the chance of developing other types of cancer. If you want to quit smoking and need help, call the American Cancer Society at 1-800-227-2345. You can also learn more in our Guide to Quitting Tobacco.
About dietary supplements
So far, no dietary supplements (including vitamins, minerals, and herbal products) have been shown to clearly help lower the risk of stomach cancer progressing or coming back. This doesn’t mean that no supplements will help, but it’s important to know that none have been proven to do so.
In the United States, dietary supplements are not regulated like medicines. They do not have to be proven effective (or even safe) before being sold, although there are limits on what they’re allowed to claim they can do. If you’re thinking about taking any type of nutritional supplement, talk to your health care team. They can help you decide which ones you can use safely while avoiding those that might be harmful.
If the cancer comes back
If the cancer does recur at some point, your treatment options will depend on where the cancer is, what treatments you’ve had before, and your overall health and preferences.
Endoscopic treatments, surgery, radiation therapy, chemotherapy, targeted therapy, immunotherapy, or some combination of these might be options. Other types of treatment might also be used to help relieve any symptoms from the cancer.
For more information on how recurrent stomach cancer is treated, see Treating Stomach Cancer.
For general information, see Understanding Recurrence.
Could I get a second cancer after treatment?
People who’ve had stomach cancer can still get other cancers. They don’t have a higher risk of second cancers overall, but they do seem to have an increased risk of cancers of the thyroid and small intestine.
Experts do not recommend any additional testing to look for second cancers in people who’ve had stomach cancer. Still, it’s important to tell your doctor about any new symptoms or problems you have, because they could be caused by the stomach cancer coming back, or by a new disease or second cancer.
Like other people, survivors of stomach cancer should follow the American Cancer Society guidelines for the early detection of cancer and stay away from tobacco products, which increase the risk of many types of cancers.
To help maintain good health, survivors should also:
- Get to and stay at a healthy weight.
- Stay physically active and limit time spent sitting or lying down.
- Follow a healthy eating pattern that includes plenty of fruits, vegetables, and whole grains, and that limits or avoids red and processed meats, sugary drinks, and highly processed foods.
- Avoid or limit alcohol. If you do drink, have no more than 1 drink per day for women or 2 per day for men.
These steps may also lower the risk of some other health problems.
See Second Cancers for more information about causes of second cancers.
Getting emotional support
It’s normal to feel depressed, anxious, or worried when stomach cancer is a part of your life. Some people are affected more than others. But everyone can benefit from help and support from other people, whether friends and family, religious groups, support groups, professional counselors, or others. Learn more in Life After Cancer.
- Written by
- References
Developed by the American Cancer Society medical and editorial content team with medical review and contribution by the American Society of Clinical Oncology (ASCO).
National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology: Gastric Cancer. Version 3.2025. Accessed at www.nccn.org on December 12, 2025.
Rock CL, Thomson C, Gansler T, et al. American Cancer Society guideline for diet and physical activity for cancer prevention. CA Cancer J Clin. 2020;70(4). doi:10.3322/caac.21591.
Rock CL, Thomson CA, Sullivan KR, et al. American Cancer Society nutrition and physical activity guideline for cancer survivors. CA Cancer J Clin. 2022;72(3):230-262.
Stolzenberg-Solomon RZ, Fraumeni JF, Wideroff L, et al. New Malignancies Following Cancer of the Digestive Tract, Excluding Colorectal Cancer. In: Curtis RE, Freedman DM, Ron E, Ries LAG, Hacker DG, Edwards BK, Tucker MA, Fraumeni JF Jr. (eds). New Malignancies Among Cancer Survivors: SEER Cancer Registries, 1973-2000. National Cancer Institute. NIH
Publ. No. 05-5302. Bethesda, MD, 2006. Accessed at http://seer.cancer.gov/archive/publications/mpmono/MPMonograph_complete.pdf on December 16, 2025.
Last Revised: February 27, 2026
American Cancer Society medical information is copyrighted material. For reprint requests, please see our Content Usage Policy.
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