How Common Are Adult Liver Hemangiomas, and Who Gets Them?

Liver hemangiomas are the most common benign (non-cancerous) tumors of the liver, and they are frequently found in healthy adults. In studies of adults undergoing routine imaging like ultrasounds or CT scans, hemangiomas are found in roughly 2% to 3.3% of the scanned population ^[1][2][3]. However, the exact prevalence in the general population is difficult to pin down because the majority are completely asymptomatic and are only discovered incidentally.

Key Takeaways

• A typical adult liver hemangioma is a benign collection of blood vessels. It is not cancer, does not spread, and will not transform into cancer.
• Most are small, asymptomatic, and found incidentally during an imaging test for something else.
• The most important step for a patient is confirming with their doctor that the imaging appearance is classic and definitive.
• (Note: The statistics on this page describe adult hepatic hemangiomas. Infantile hepatic hemangiomas in babies are a distinct pediatric condition.)

Why Do Prevalence Numbers Vary?

When researching liver hemangiomas, you may notice widely different estimates about how common they are. This happens because studies measure different groups of people using different methods:

Regardless of how they are counted, reviews estimate that the majority of liver hemangiomas (roughly 50% to 70% in some summaries) are completely asymptomatic ^[7][8].

Age and Detection

Liver hemangiomas can theoretically form at any age, but they are most frequently diagnosed in adults during midlife.

• Clinical studies show that the majority of diagnoses occur in people between the ages of 30 and 60 ^[6].
• In one large health-screening study, the highest prevalence of liver hemangiomas was found in adults aged 41 to 50 ^[5].
• Another imaging study found the average age at diagnosis to be around 47 years old ^[1].

Because these lesions usually grow slowly (if at all) and rarely cause pain, this midlife detection may partly reflect the age when adults begin having more abdominal scans for other health reasons, rather than the age the hemangioma actually developed.

Are Women More Likely to Get Them?

Historically, medical literature stated that liver hemangiomas were far more common in women. However, modern data reveals a more nuanced picture depending on the group being studied.

In large health-examination screenings of the general population, the prevalence between men and women is actually very similar, sitting at roughly a 1:1 ratio ^[5].

So why do many resources still state that women get them more often?

• Referral or Ascertainment Bias: While men and women may develop small hemangiomas at similar rates, women are much more likely to be evaluated or treated for them in hospital settings (sometimes at a ratio of 2:1 or higher) ^[6][1].
• Tumor Size and Hormones: Some research suggests an association between female hormones (like estrogen) and the possible enlargement of hemangiomas. In specialty clinics tracking “giant hemangiomas” (very large lesions, often defined as over 4 or 5 centimeters, though definitions vary), female patients significantly outnumber male patients ^[9].

Important Safety Note: While hormones may be associated with hemangioma growth, the evidence is not definitive. You should never stop taking birth control, hormone replacement therapy, or other medications without first discussing it with your treating clinician.

What This Means For You

For both men and women, demographic statistics do not determine your personal health plan. The reassurance that a hemangioma is a common, benign finding applies when the imaging features are classic and your radiologist is confident in the diagnosis.

If a scan report calls a lesion “indeterminate” or “atypical,” your doctor will likely order a dedicated contrast-enhanced scan (like an MRI) to be absolutely sure of what it is.

When to Seek Care
Usually, an incidental hemangioma requires no routine surveillance unless your doctor recommends it based on size or atypical features. While hemangiomas rarely cause symptoms, persistent right-upper-abdominal discomfort or a feeling of fullness should be discussed with your doctor, as these symptoms can have many causes and should not be automatically attributed to the hemangioma.

Although extremely rare, if you ever experience sudden, severe abdominal pain, fainting, or marked dizziness (especially after trauma to the abdomen), seek urgent medical evaluation.