There’s growing evidence that genetics may influence your likelihood of developing hemorrhoids. While research hasn't pinpointed a definitive gene responsible, what is clear is that certain physical traits often run in families—traits that can increase hemorrhoid risk. For example, a genetic predisposition to weak vein walls or poor connective tissue support may make it more likely for hemorrhoidal veins to become swollen under pressure. If your parents or siblings have had hemorrhoids, you may be more susceptible as well.
Vein-related issues like varicose veins and chronic venous insufficiency share common ground with hemorrhoids, both involving compromised vascular structures. These conditions can reflect inherited vascular weaknesses that don’t just affect your legs or circulation—but also the veins in your rectum and anus. Some studies even suggest that hereditary factors may impact how your body responds to pressure and inflammation, further connecting the dots between family history and hemorrhoid development.
Genetic predispositions can also influence how your body handles digestion, inflammation, and venous return. People with inherited tendencies toward constipation or slow gastrointestinal transit may also be more prone to hemorrhoids due to frequent straining. In this sense, hemorrhoid risk isn't only about the veins themselves—it's about the broader picture of inherited digestive and circulatory traits.
Even if there’s a hereditary component, lifestyle plays a significant role in whether or not hemorrhoids actually develop. Sedentary habits, chronic constipation, low fiber intake, and repeated straining during bowel movements all contribute significantly to hemorrhoid formation. These environmental factors often interact with your genetic predisposition, increasing your likelihood of flare-ups.
You might inherit a predisposition, but behavior is often the trigger. In fact, many people with a genetic risk never develop hemorrhoids because they actively manage contributing factors. Eating a fiber-rich diet, drinking plenty of water, avoiding prolonged sitting, and staying active are all practical ways to reduce your risk—genetics or not. Smoking, dehydration, and poor posture during defecation can also amplify symptoms, especially in people with inherited weaknesses.
Even daily routines matter. Occupations that require prolonged sitting, like office jobs or long-haul driving, can lead to increased rectal pressure—compounding any underlying genetic vulnerabilities. Conversely, staying mobile, managing stress, and practicing healthy bowel habits can mitigate hereditary risks.
If multiple members of your family have had issues with hemorrhoids, it’s worth being proactive. Talk to your doctor if you begin noticing symptoms like rectal bleeding, itching, or discomfort. Don’t dismiss signs just because “it runs in the family”—some symptoms may overlap with more serious conditions like anal fissures or even cancer.
Early intervention makes a significant difference. Conservative treatments like dietary changes, sitz baths, and topical medications may help early-stage hemorrhoids, but recurrent or advanced cases may need more specialized care. Dr. Albert Chung is a board-certified colorectal surgeon in Orange County, CA who specializes in diagnosing and treating hemorrhoids.
If you’re concerned about your family history or current symptoms, call (714) 988-8690 to schedule a consultation and get expert guidance tailored to your needs. Hemorrhoids may run in families—but so can proactive care and lasting relief.