How Many Days Is the Hospital Stay After Stomach Cancer Surgery? (2026 Update)

After gastrectomy (including laparoscopic and robotic approaches), the typical hospital stay is about 5 to 10 days, and it's advisable to rest at home for at least two more weeks after discharge. If only endoscopic resection was performed, the hospital stay is much shorter.

Key Takeaways

• The hospital stay for laparoscopic or robotic gastrectomy is roughly 5 to 10 days (based on robotic surgery notes).
• For patients who undergo only endoscopic submucosal dissection (ESD), the hospital stay is shorter, at 2 to 4 days.
• After discharge following stomach cancer surgery, it's recommended to rest at home for at least about 2 weeks (National Cancer Center Korea).
• As a target, the total stay in Korea should be around ten days for endoscopic resection, and 2 to 3 weeks for laparoscopic or robotic resection.
• If adjuvant chemotherapy is started in Korea after surgery, the total stay will extend accordingly.

Why Does Hospital Stay Differ by Surgical Method?

• Stomach cancer treatment is broadly divided into three approaches depending on stage, and the hospital stay differs by method.
• Endoscopic submucosal dissection (ESD): For early-stage stomach cancer confined to the mucosa, this procedure removes only the lesion without cutting any organ. After the procedure, patients typically fast for a day or two while being monitored for bleeding or perforation before discharge, resulting in a hospital stay of 2 to 4 days.
• Laparoscopic/robotic gastrectomy: This surgery removes part or all of the stomach along with nearby lymph nodes. Patients begin walking the day after surgery and progress through a diet sequence of water → rice water → porridge, with a hospital stay of about 5 to 10 days.
• Open surgery: Compared to laparoscopic or robotic surgery, open surgery involves a larger incision with relatively more pain and slower recovery, which can result in a longer hospital stay.

What Is the Recovery Sequence During and After Hospitalization?

• Stage 1 — Day of surgery to the next day: Patients begin walking a little and practicing deep breathing starting the day after surgery. Walking as much as possible is important for preventing atelectasis (lung collapse).
• Stage 2 — Adjusting to meals during hospitalization: Patients progress through a staged diet of water, rice water, and porridge while adjusting to incisional pain and a feeling of gas buildup.
• Stage 3 — Just before discharge: Medical staff check the wound condition and how well the patient has adjusted to eating, and the nutrition team often provides dietary guidance materials.
• Stage 4 — At least 2 weeks after discharge: Patients rest at home, following the principle of eating small amounts, frequently, and slowly (National Cancer Center Korea).
• Stage 5 — Outpatient follow-up: Patients typically attend an outpatient visit to check the wound and hear the final pathology results before returning to their home country, after which nutritional status and weight changes are checked regularly.

FAQ — Can I Fly Right After Discharge?

The National Cancer Center Korea advises resting at home for at least about 2 weeks after discharge following stomach cancer surgery. Before any long-distance travel, it's best to consult with your medical team about the appropriate timing. For international patients, it's recommended to receive written dietary guidelines and contact information, with interpretation support, before discharge.

FAQ — What Symptoms During Hospitalization Require Immediate Contact With Medical Staff?

You should contact your medical team immediately if you have a fever of 38°C or higher; if the surgical site becomes swollen, red, or discharges pus or fluid; if you experience persistent vomiting or severe, bloated abdominal pain; or if you notice blood in your stool or black stools (National Cancer Center Korea, U.S. National Cancer Institute/NCI). Bacterial invasion through the surgical wound can cause fever, and wound infections are treated with drainage and antibiotics.

Sources and Disclaimer

This content was prepared based on notes on stomach cancer, robotic surgery, and post-surgical recovery and diet (National Cancer Center Korea, National Cancer Center, NCCN patient guidelines). This content is provided for general medical information purposes only, and diagnosis, treatment methods, and outcomes may vary depending on individual circumstances. Accurate diagnosis and treatment should always be determined through consultation with your medical team.