Watermelon Stomach: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Watermelon Stomach?
A primary care doctor is often the first to notice the problem, usually after seeing anemia on a blood test, and will refer the patient to a gastroenterologist, a digestive specialist who performs the endoscopy and treats the bleeding vessels.
What it is
Watermelon stomach is a condition in which small blood vessels in the stomach grow wider and more fragile than they should be. The medical name is gastric antral vascular ectasia. During a camera exam, the red streaks of widened vessels look like the stripes on a watermelon. The fragile vessels can leak small amounts of blood over time, leading to anemia, which causes tiredness and weakness.
Symptoms
Many people with watermelon stomach have no stomach pain at all. The most common problems come from the slow loss of blood and include feeling very tired, weak, pale, and short of breath. Some people notice black and tarry stools, a sign of blood in the digestive tract.
Causes and who gets it
Doctors do not fully understand why it happens. It is more common in women and usually found in people over 60, and is often linked to cirrhosis, certain autoimmune diseases, kidney disease, and some connective tissue problems.
How doctors diagnose it
The main test is an upper endoscopy, which uses a thin, flexible tube with a tiny camera passed through the mouth into the stomach. The doctor can see the red streaks that give the condition its name, and a biopsy may be taken to rule out other problems.
Treatment
Treatment has two goals: stopping the bleeding and treating the anemia. The most common treatment is done during endoscopy, using heat or laser therapy to seal the fragile vessels. Some people need more than one session, and others receive iron supplements to rebuild red blood cells.
When to see a doctor
Anyone who feels unusually tired or weak, or notices black and tarry stools, should contact a doctor. Vomiting blood is an emergency. Because the blood loss is slow, the problem often only shows up when a routine blood test reveals anemia.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance; a concierge doctor usually charges more and often works alongside insurance. Either kind can order blood tests, watch anemia over time, and manage related conditions, referring patients to a gastroenterologist for endoscopy and follow-up care.
Common questions
Is watermelon stomach cancer?
No. Watermelon stomach is not cancer, and it does not turn into cancer. It is a problem with blood vessels in the stomach lining. Doctors still examine the stomach carefully to make sure nothing else is going on.
Does watermelon stomach hurt?
Most people do not have stomach pain from this condition. The main symptoms are tiredness and weakness from anemia. If someone has severe stomach pain, a doctor should look for other causes.
Can watermelon stomach come back after treatment?
It can. Some people need more than one endoscopy treatment to control the bleeding. Regular follow-up with blood tests helps doctors catch any return of the problem early.
Why is it called watermelon stomach?
During an endoscopy, the widened blood vessels appear as long red streaks on the stomach lining. These streaks look like the stripes on a watermelon rind. The name stuck because the picture is so easy to recognize.
Sources
- MedlinePlus - Stomach Disorders
- NIH Genetic and Rare Diseases Information Center - Vascular ectasia of gastric antrum
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
