What are the symptoms of stomach cancer?

Short answer
Stomach cancer may cause persistent indigestion, feeling full quickly, appetite loss, abdominal pain, vomiting blood, or unexplained weight loss.
This answers one question. It is not a diagnosis and does not replace an assessment by a licensed doctor.
At a glance
- Digestive signs
- Indigestion, bloating, nausea, or early fullness
- Nutrition signs
- Appetite loss or unexplained weight loss
- Bleeding sign
- Vomiting blood or coffee-ground material
How symptoms may develop
Digestive symptoms can include burning or discomfort after eating, nausea, bloating, early fullness, or difficulty swallowing when the upper stomach is involved. Pain may be in the upper abdomen and can be vague at first. Reduced appetite and feeling full after a small amount of food may gradually affect nutrition.
Bleeding can cause vomiting of fresh blood or material that looks like coffee grounds, and it can make stools dark and tar-like. Indigestion, reflux, ulcers, infection, and medicines can cause similar symptoms, so symptoms alone cannot identify stomach cancer.
What to do about ongoing symptoms
Arrange a medical review for indigestion, upper abdominal pain, early fullness, appetite loss, or weight loss that persists, recurs, or interferes with eating. Mention difficulty swallowing, vomiting, dark stools, previous stomach ulcers, and medicines such as anti-inflammatory pain relievers. A clinician may recommend blood tests, imaging, or an endoscopy with biopsy.
When stomach cancer is diagnosed, treatment depends on its position and extent. Care may include chemotherapy, stomach removal surgery, nutritional support, and treatment for symptoms such as pain or nausea. Ask how eating and digestion may change after treatment.
When to seek urgent help
Seek urgent care for vomiting blood, black tar-like stool, faintness, severe or worsening abdominal pain, repeated vomiting, a swollen abdomen, or inability to keep fluids down. These symptoms can indicate bleeding, dehydration, or blockage and should not wait for a routine appointment.
Questions for your doctor
Ask whether your symptoms need an endoscopy, which warning signs should prompt urgent care, and how medicines or ulcers might contribute. If testing finds cancer, ask about its location, nutrition support, chemotherapy, and whether stomach removal surgery is being considered.
Questions people ask
Does indigestion mean stomach cancer?
No. Indigestion is common and often has non-cancerous causes, but persistent or changing indigestion should be assessed.
What does vomiting blood look like?
It may look bright red or like dark coffee grounds. Either appearance needs urgent medical attention.
Related
Related reading
Keep reading
Cancer care in the UAE
Hospitals & Medical Centers in Abu Dhabi
Most UAE cancer care is delivered inside hospital services rather than by standalone oncology clinics, so these are licensed hospitals & medical centers listed in Abu Dhabi. Confirm the specific cancer service exists before you travel, and know that asking for a second opinion is routine.
Ahalia Hospital Musaffah Building - Musaffah - Musaffah Industrial - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, AXA, Cigna +26 more
Al Ruwais Industrial City - Abu Dhabi - United Arab Emirates
Accepts: Daman, Thiqa, AXA, Cigna +30 more
Abu Dhabi, Abu Dhabi
Accepts: Daman, Thiqa, AXA, Cigna +30 more
Second opinions are routine in cancer care and asking for one does not affect your treatment. How to arrange a second opinion in the UAE.
Ordered by verification status and how complete each clinic's public record is, then alphabetically. This is a directory listing, not a ranking — Zavis does not rate or recommend providers.
A factual listing drawn from the DHA, DOH and MOHAP licence registers. It is not a referral, an endorsement, or advice that any of these providers is right for you.
Medical disclaimer. This page is general health information, not medical advice, and it cannot diagnose you. Always consult a licensed healthcare provider about your own symptoms and treatment. In an emergency in the UAE, call 998 for an ambulance.