Hemorrhoids are extremely common. A 2025 systematic review pooling data from 71 studies estimated a global point prevalence of about 26%, meaning roughly one in four adults has hemorrhoids at any given time.1PubMed Central. Worldwide prevalence of haemorrhoids: a systematic review and meta-analysis That figure almost certainly undercounts real-world numbers, because embarrassment keeps many people from reporting symptoms or seeing a doctor. What makes the condition so widespread involves anatomy, daily habits, genetics, and a few modern behaviors that researchers are only beginning to quantify.
How Common Are Hemorrhoids, Really?
The global numbers are striking. The same meta-analysis found that lifetime prevalence sits around 27%, and the one-year rate is about 22%.1PubMed Central. Worldwide prevalence of haemorrhoids: a systematic review and meta-analysis But those figures come from studies that use different methods. Some rely on self-reporting, others on clinical examination, and the gap between the two is revealing. In one Austrian study that actually examined nearly a thousand adults who came in for routine colonoscopy screening, about 39% turned out to have hemorrhoids. More than half of those people had no idea, reporting zero symptoms beforehand.2PubMed. The prevalence of hemorrhoids in adults So the true number of people walking around with hemorrhoidal tissue changes is probably higher than what surveys capture.
Rates also vary by region and study design. A cross-sectional study in Makkah, Saudi Arabia, found that 16% of adults reported a formal diagnosis.3PubMed Central. Prevalence of Hemorrhoids and the Associated Risk Factors Among the General Adult Population in Makkah, Saudi Arabia That is noticeably lower than the global pooled estimate, but it relied entirely on people remembering and disclosing a diagnosis. In a separate survey-based study, about two-thirds of respondents said they had experienced symptoms they associated with hemorrhoids, yet only about 31% of those people had ever consulted a doctor about it.4PubMed Central. Barriers to Seeking Medical Care for Hemorrhoidal Symptoms: A Cross-Sectional Observational Study The main reasons for avoiding a visit were believing symptoms would go away on their own, lacking time, feeling ashamed, and fearing a serious diagnosis. That combination means a huge number of people manage hemorrhoid symptoms silently.
Internal Versus External Hemorrhoids
Everyone has hemorrhoidal tissue. These are cushions of blood vessels, connective tissue, and smooth muscle that line the anal canal. They help with continence and the fine-tuned control of the sphincter. The condition people call “hemorrhoids” is really hemorrhoidal disease, which happens when those cushions swell, shift, or become inflamed.5PubMed Central. Pathophysiology of internal hemorrhoids
The key distinction is location. Internal hemorrhoids form above a boundary inside the anal canal called the dentate line. They are covered by a type of tissue that does not have pain-sensing nerves, which is why they tend to bleed painlessly and can prolapse (slide downward) without much discomfort in the early stages.6PubMed Central. Hemorrhoids Internal hemorrhoids are graded from I to IV based on how much they prolapse, ranging from no prolapse at all (grade I) to permanently prolapsed tissue that cannot be pushed back in (grade IV).
External hemorrhoids develop below the dentate line, under the skin around the anus. Unlike their internal counterparts, external hemorrhoids sit in tissue rich with pain fibers, so they hurt, especially when a blood clot forms inside one. That complication, a thrombosed external hemorrhoid, causes a sudden, hard, tender lump and can be intensely painful.7GSC Biological and Pharmaceutical Sciences. A Review of a selected Ayurvedic herbal formula in the management of Thrombosed External Hemorrhoids (Bāhya Arshas): A critical analysis Many people also develop mixed hemorrhoids, with both internal and external components present at the same time.
The practical difference matters for treatment decisions. Internal hemorrhoids that only bleed slightly are often managed conservatively, while thrombosed external hemorrhoids sometimes need drainage or surgical removal for pain relief. Knowing which type you have shapes what a doctor will recommend.
The Major Risk Factors
The list of suspected risk factors for hemorrhoids is long and familiar: constipation, low fiber intake, high body mass index, pregnancy, and a sedentary lifestyle. But the evidence for each of these is not as ironclad as most people assume. A review of the literature noted that while these factors are “often assumed to increase the risk,” the actual evidence is mixed and sometimes contradictory.8PubMed Central. Lifestyle and Risk Factors in Hemorrhoidal Disease That said, certain associations hold up better than others.
Constipation and straining have the strongest support. A cross-sectional analysis of toilet behaviors found that patients with anorectal diseases, including hemorrhoids, had much higher rates of weekly constipation compared to controls. Prolonged toilet sitting also stood out: about 8% of patients spent more than 20 minutes per session on the toilet, versus less than 1% of controls.9PubMed Central. Toilet behaviors and lifestyle factors in anorectal diseases: a cross-sectional analysis Straining drives up pressure in the anal canal dramatically, and that repeated mechanical stress appears to damage the supportive tissue around hemorrhoidal cushions over time.
Pregnancy deserves its own mention, because the mechanism is somewhat different. The growing uterus compresses pelvic veins, raising pressure in the hemorrhoidal plexus. Hormonal changes loosen connective tissue. Constipation is more common during pregnancy. And vaginal delivery adds acute strain. Hemorrhoids are among the most common postpartum anorectal complaints.10PubMed Central. Postpartum Anorectal and Pelvic Floor Disorders: Evaluation, Treatment, and Prevention For many women, these hemorrhoids resolve after delivery, but not always, especially after multiple pregnancies.
Smartphones on the Toilet
This is one of those risk factors that sounds like a joke but has actual research behind it. Using a smartphone on the toilet extends the average time people spend sitting there, often without them realizing it. A study examining this link pointed out that sitting on a standard toilet seat, unlike sitting in a chair, provides no support to the pelvic floor. When you add passive scrolling that stretches a five-minute trip into 15 or 20 minutes, the hemorrhoidal cushions spend that entire time under unsupported pressure.11PubMed Central. Smartphone use on the toilet and the risk of hemorrhoids
The researchers made an interesting distinction. Prolonged sitting in general, at a desk or on a couch, has not been definitively linked to hemorrhoid development. That kind of sitting distributes weight across a surface that supports the pelvis. A toilet seat does the opposite, creating an opening that lets gravity act on the anal cushions. The smartphone effect, then, is not about the phone itself but about what the phone does to your sense of time in a particularly unfavorable position. The practical takeaway is simple: if you are prone to hemorrhoids, leave the phone outside the bathroom.
The Genetic Angle
Many people notice that hemorrhoids seem to run in families. Research is starting to explain why. A review of around 250 papers on the genetics and epigenetics of hemorrhoidal disease identified several genes that may predispose people to the condition. These genes are associated with varicose veins, chronic inflammation, and connective tissue changes, all of which are relevant to how hemorrhoidal cushions break down.12PubMed Central. How Can Molecules Induce Hemorrhoids? The Role of Genetics and Epigenetics in Hemorrhoidal Disease
A separate study looked at the actual connective tissue composition of hemorrhoidal tissue versus healthy tissue and found a meaningful difference. In people with hemorrhoidal disease, the ratio of two key types of collagen was significantly lower, suggesting reduced mechanical stability in the tissue. In simpler terms, the scaffolding that holds hemorrhoidal cushions in place was weaker in people who developed the disease.13PubMed Central. Abnormalities in collagen composition may contribute to the pathogenesis of hemorrhoids: morphometric analysis This matters because it means two people with identical diets, toilet habits, and activity levels might have very different hemorrhoid outcomes depending on their inherited connective tissue quality. If your parents or siblings have had hemorrhoid problems, your structural predisposition may be higher, and paying attention to modifiable risk factors becomes that much more important.
How Hemorrhoids Affect Daily Life
The medical community has historically treated hemorrhoids as a minor nuisance, but quality-of-life data tells a different story. A study measuring health-related quality of life in patients with hemorrhoidal disease found that people reporting a high symptom burden had notably lower physical health scores compared to the general population. Interestingly, the surgeon’s assessment of how bad the hemorrhoids looked anatomically did not predict quality of life. What mattered was how many symptoms the patient experienced and how much those symptoms bothered them.14PubMed Central. Quality of life in patients with hemorrhoidal disease
That disconnect between clinical severity and lived experience is worth understanding. A person with grade II internal hemorrhoids that bleed daily and itch constantly may be more miserable than someone with a single grade III hemorrhoid that rarely flares. Symptom burden includes pain, bleeding, itching, soiling, and the constant low-level anxiety about whether symptoms will appear at inconvenient times. Quality of life improved after surgical treatment, which suggests that people who suffer for years while avoiding medical care are paying a real cost in well-being.
Even conservative management can make a substantial difference. A study tracking patients with early-stage hemorrhoids through conservative treatment found that both physical and mental health scores improved significantly after treatment.15PubMed Central. Beyond Symptom Relief: Quality of Life Recovery After Conservative Management of Early Hemorrhoids The mental health improvement is telling, because it suggests that the psychological weight of hemorrhoid symptoms, the embarrassment, the worry, the distraction during work and social activities, lifts once the condition is addressed.
What Works for Prevention and Early Treatment
Fiber supplementation is the closest thing to a proven first-line defense. A meta-analysis of clinical trials found that increasing fiber intake cut the risk of persisting symptoms by roughly half and reduced bleeding by a similar margin.16PubMed. Fiber for the treatment of hemorrhoids complications: a systematic review and meta-analysis Fiber works by softening stool and increasing its bulk, which reduces straining and shortens time on the toilet, hitting two major risk factors at once. This can come from dietary sources like fruits, vegetables, legumes, and whole grains, or from supplements like psyllium husk. The effect is not instantaneous. It generally takes a few weeks of consistent intake before symptoms improve.
Beyond fiber, the other main conservative measures are straightforward: drink enough water, avoid sitting on the toilet longer than necessary, don’t strain or push when you don’t need to, and stay physically active. Warm sitz baths (sitting in a few inches of warm water for 10 to 15 minutes) can relieve pain and itching during flare-ups. Over-the-counter creams and suppositories provide temporary symptom relief but do not address the underlying problem.
For people with persistent internal hemorrhoids, particularly grade II and III, rubber band ligation has become a standard outpatient option. A clinician places a small band around the base of the hemorrhoid, cutting off its blood supply so the tissue shrinks and falls off over several days. Endoscopic rubber band ligation has shown good results for grade II and III internal hemorrhoids, with one study finding it safe and effective for these stages.17PubMed Central. Efficacy and safety of combined endoscopic rubber band ligation in the treatment of grade II-III prolapsed hemorrhoids: a retrospective study For mixed hemorrhoids involving both internal and external components, combining rubber band ligation with targeted removal of the external component has shown lower recurrence rates and fewer complications compared to traditional full surgical hemorrhoidectomy.18PubMed Central. Clinical efficacy and recurrence analysis of endoscopic rubber band ligation combined with external hemorrhoidectomy for mixed hemorrhoids
For early-stage internal hemorrhoids (grade I), the choice between rubber band ligation, injection sclerotherapy, and a combination of both does not appear to make a large difference in long-term outcomes. All three approaches produced comparable results in one study. The combined technique, though, showed an edge for grade II and III hemorrhoids, with lower recurrence and fewer side effects than either approach alone.19PubMed Central. Endoscopic rubber band ligation, injection sclerotherapy, and sclerobanding for the treatment of internal hemorrhoids
Why So Many People Avoid Getting Help
Given how common and how treatable hemorrhoids are, the gap between symptom prevalence and medical consultation is remarkable. In the survey mentioned earlier, about 70% of people who recognized their own hemorrhoid symptoms never saw a doctor about them.4PubMed Central. Barriers to Seeking Medical Care for Hemorrhoidal Symptoms: A Cross-Sectional Observational Study The belief that symptoms would resolve spontaneously was the most common reason, cited by about 40% of non-consulters. Shame accounted for about 15%, and fear of a serious diagnosis for roughly 9%.
The “it will go away” assumption is not always wrong. Mild hemorrhoid flares often do subside, especially if you change the behaviors that triggered them. But when symptoms persist, bleed repeatedly, or progress, waiting carries real downsides. Chronic bleeding can contribute to iron-deficiency anemia over time. Prolapsed hemorrhoids that are not addressed can worsen from a stage that responds to banding into one that requires surgery. And as the quality-of-life data shows, months or years of unaddressed symptoms take a toll on physical and mental well-being that people underestimate because they are used to it.
The shame barrier is particularly stubborn. Hemorrhoids involve a part of the body people do not like discussing, and the examination itself can feel invasive. But doctors and gastroenterologists see hemorrhoids constantly, and the diagnostic process is generally quick and straightforward. If you have been dealing with symptoms for more than a few weeks, or if you see blood in your stool and are not sure whether hemorrhoids are the cause, the case for getting evaluated is strong. Rectal bleeding has many possible causes, and some of them, including colorectal polyps and cancer, are far more serious. A doctor can distinguish hemorrhoidal bleeding from something else in ways that self-diagnosis cannot.
Age, Sex, and Who Gets Hit Hardest
Hemorrhoid prevalence tends to climb with age, peaking somewhere in the middle decades. The supportive connective tissue in the anal canal weakens over time, much like it does elsewhere in the body, making the hemorrhoidal cushions more prone to sliding and swelling. This is consistent with the collagen findings described earlier: if the tissue scaffolding deteriorates with age, the mechanical forces of normal bowel movements become enough to cause problems that younger, more resilient tissue would tolerate.
Pregnancy aside, some studies find roughly equal prevalence across sexes, while others report slightly higher rates in men. The differences tend to be small and are hard to separate from reporting bias, since men and women may differ in their willingness to disclose symptoms or seek care. What is more consistent across studies is that occupations involving prolonged standing or heavy lifting, and lifestyles with low physical activity and poor dietary fiber, are associated with higher rates regardless of sex.
A factor that sometimes gets overlooked is the role of chronic conditions that raise abdominal pressure. Persistent coughing from chronic lung disease, straining from chronic constipation related to neurological conditions, and obesity all create the kind of repeated downward pressure on pelvic structures that promotes hemorrhoidal disease. For people managing these chronic conditions, hemorrhoid prevention is an ongoing effort rather than a one-time fix.
When Hemorrhoid Symptoms Signal Something Else
One of the most important things to understand about hemorrhoid symptoms is that they overlap with symptoms of other, sometimes more serious, conditions. Bright red blood on toilet paper is the hallmark of hemorrhoidal bleeding, but anal fissures, inflammatory bowel disease, and colorectal cancers can all present with rectal bleeding too. Itching and discomfort around the anus can come from hemorrhoids, from skin conditions, from infections, or from fistulas.
The risk of misattribution runs in both directions. People sometimes assume rectal bleeding is “just hemorrhoids” and delay evaluation of something more dangerous. Conversely, people sometimes panic about what turns out to be a straightforward hemorrhoid flare. The safest approach is a simple rule: any new rectal bleeding deserves at least one evaluation by a healthcare provider, particularly if you are over 45, have a family history of colorectal cancer, or notice changes in bowel habits alongside the bleeding. Hemorrhoids are overwhelmingly the most likely explanation, but ruling out the less common alternatives is quick, inexpensive relative to the stakes, and can save your life in the rare case that something else is going on.