Stomach Cancer

Stomach cancer, also known as gastric cancer, is a cancer that starts in the stomach lining. It often develops slowly, and early symptoms can look like common problems such as acidity or indigestion. Getting checked early is important because treatment works best when cancer is found at an early stage.

Stomach cancer can affect digestion, appetite, and nutrition. If it grows deeper into the stomach wall or spreads to other organs, it becomes harder to treat. Persistent or worsening stomach symptoms should not be ignored.

Common Symptoms

Early symptoms (can feel like acidity)

• Indigestion or heartburn that does not improve
• Feeling full quickly after small meals
• Loss of appetite
• Bloating after eating
• Upper belly discomfort

Other possible symptoms

• Nausea or vomiting
• Unexplained weight loss
• Tiredness or weakness (may be due to anemia)
• Black stools or vomiting blood (in some cases)

Risk Factors

Stomach cancer risk may be higher with:

• Long-term H. pylori infection
• Long-term gastritis or stomach ulcers
• A diet high in salty, smoked, or processed foods
• Smoking or tobacco use
• Heavy alcohol use
• Older age
• Family history of stomach cancer
• Certain rare inherited conditions

Diagnosis

Doctors may suggest tests such as:

Common tests

• Upper endoscopy with biopsy (most important test)
• CT scan or MRI (to check spread and stage)
• Blood tests (to check anemia and overall health)
• Additional tests based on symptoms and findings

Treatment Options

Treatment depends on the stage, location, and overall health.

Surgery

Often, the main treatment when cancer is localized. Part or all of the stomach may be removed based on tumor size and location.

Chemotherapy

Used before surgery, after surgery, or for advanced cancer to control growth and reduce recurrence risk.

Radiation therapy

Used in selected cases, sometimes combined with chemotherapy.

Targeted therapy and immunotherapy

Used in selected patients based on tumor testing and a specialist plan.

Supportive Care During Treatment

Supportive medicines may help with:

• Nausea and vomiting
• Pain control
• Appetite and nutrition support
• Anemia or low blood counts (in selected cases)
• Acidity and digestion support

When to Seek Urgent Medical Care

Get urgent help if you have:

• Vomiting blood or black stools
• Severe weakness, dizziness, or fainting
• Severe belly pain with repeated vomiting
• Inability to eat or drink due to symptoms

Specialists to Consult

• Gastroenterologist
• Surgical oncologist
• Medical oncologist
• Radiation oncologist (if needed)

Explore Stomach Cancer Care

Browse this category for medicines used in the treatment of stomach cancer and for supportive care, chosen as part of a specialist-led plan.