Diverticulosis and Diverticulitis

What is Diverticulosis and Diverticulitis?

Diverticulosis is the presence of small sac-like pouches, called diverticula, that bulge out through the wall of the intestine, most often in the sigmoid colon at the lower left of the abdomen. Most people with diverticulosis have no symptoms.^[1] Diverticulitis is inflammation of a pouch, sometimes with infection, and it develops in about 10% to 25% of people who have diverticulosis.^[2]

Because diverticulitis can lead to abscess, perforation or bleeding, it is a condition for medical care. Our role is limited to supportive care once you have been diagnosed and are under a physician's care.

Common symptoms

Diverticulosis alone usually causes no symptoms and is often found by chance during a colonoscopy or scan.^[1] About a quarter of people with diverticula go on to develop symptoms, a group of conditions called diverticular disease.^[3]

• Symptomatic uncomplicated diverticular disease: persistent lower left abdominal pain with changes in bowel habit, such as diarrhea, but without signs of body-wide inflammation^[4]
• Acute diverticulitis: abdominal pain with fever, nausea and a change in bowel movements^[2]
• Complications: abscess, fistula, bowel obstruction or perforation, and bleeding from a diverticulum^{[2, 3]}

Causes and risk factors

Diverticula form through an interaction of genetics, changes in how the colon moves, pressure inside the bowel, and the gut's microbial and inflammatory environment.^{[3, 5]} A low-fiber diet is a long-recognized factor. A systematic review of 8 studies, none of them high quality, linked high fiber intake with fewer episodes of diverticulitis, and red meat and a Western-style diet with more.^[6]

Smoking, obesity, and the use of anti-inflammatory painkillers (NSAIDs), corticosteroids or opioids raise the risk of diverticular disease, according to an international consensus.^[7] Older age and physical inactivity also play a part.^[4]

How it is diagnosed and treated conventionally

Diverticulosis is usually found incidentally and needs no treatment in itself. Suspected acute diverticulitis is assessed with imaging, and CT is preferred when complications are possible.^[7] Routine antibiotics are no longer recommended for every uncomplicated episode.^{[5, 7]}

For ongoing symptoms, a high-fiber diet with whole grains, fruit and vegetables is encouraged, and doctors may consider selected probiotics, rifaximin or mesalazine.^{[4, 7]} A systematic review found high-strength evidence that mesalamine does not prevent recurrent diverticulitis, and elective surgery is considered mainly after complicated or frequently recurring episodes.^[8]

Why Diverticulosis and Diverticulitis calls for a whole-person approach

Diverticular disease is not only a structural problem of the colon wall. Diet, gut movement, the gut microbiome, low-grade inflammation and the gut-brain connection all appear to contribute to who develops symptoms.^{[3, 4]}

That is why supportive care focuses on the person's digestion, stress and daily habits, while the structural disease and its complications stay with the medical team.

Diet and fiber

Fiber intake is the most studied lifestyle factor. A consensus statement describes high dietary fiber as protective against diverticular disease.^[7] A review of the evidence found that fruit and cereal fiber, but not vegetable fiber, were linked with lower risk, and that the studies were not high quality.^[6]

Gut movement and inflammation

Altered colon movement, higher pressure inside the bowel and a disturbed gut environment are linked with diverticulitis.^[5] In people with symptoms but no acute infection, researchers describe low-grade local inflammation and shifts in gut bacteria.^[4]

Overlap with irritable bowel syndrome

Symptoms of diverticular disease overlap with those of irritable bowel syndrome (IBS). In a Taiwanese health-records study, people with IBS were about four times as likely to be diagnosed with acute diverticulitis later.^[9] This is an association and does not show that one causes the other.

Persistent pain after an attack

Lasting symptoms are not rare. A review reported that 20% to 35% of patients treated without surgery for diverticulitis progressed to chronic abdominal pain.^[5] This is the group in whom symptom-focused supportive care may be most relevant.

Acupuncture as supportive care in Diverticulosis and Diverticulitis

What the research shows

We found no clinical trials of acupuncture for diverticulosis, diverticular disease or diverticulitis. Nothing in the research shows that acupuncture treats the pouches or prevents diverticulitis.

Research on related digestive symptoms is more developed. A meta-analysis of 61 trials in functional gastrointestinal disorders, including irritable bowel syndrome and functional constipation, found greater symptom improvement with acupuncture than with sham acupuncture, medication or no specific treatment. The authors rated the evidence as moderate or low quality.^[10] An umbrella review of 15 systematic reviews of acupuncture and moxibustion for IBS found that most reported benefit, but rated the methods of the reviews as low or very low quality and the evidence as low or very low.^[11]

For constipation, a meta-analysis of 6 trials with 1,457 people found that electroacupuncture produced more complete spontaneous bowel movements per week than sham electroacupuncture, with benefit that faded after treatment ended.^[12] These results concern functional bowel symptoms and may not apply to symptoms caused by diverticular disease.

How acupuncture may work

Researchers propose that electroacupuncture may influence gut movement through the enteric nervous system and its chemical messengers, with some of this work done in animals. A review of the field notes that reports in the literature are controversial.^[13] These are proposed explanations, not proven mechanisms, and they have not been studied in diverticular disease.

What treatment involves

Treatment uses fine, sterile, single-use needles placed at points on the abdomen, legs, arms and other areas, usually left in place for about 20 to 40 minutes. A course is typically several visits, and we reassess after a short course to see whether symptoms are changing.

In prospective studies, about 9 in 100 patients had a minor reaction such as brief bleeding, soreness or redness at a needle site, and serious events occurred in about 1 in 10,000 patients.^[14] Tell the practitioner first if you have a bleeding disorder, take blood thinners, are pregnant, or have a pacemaker (relevant to electroacupuncture). An acute attack of diverticulitis needs urgent medical assessment, not an acupuncture visit.

Ayurvedic medicine as supportive care in Diverticulosis and Diverticulitis

The Ayurvedic view

Ayurveda does not have a single traditional category identical to diverticular disease. Practitioners commonly describe digestive complaints in terms of weak digestive fire (agni), accumulation of undigested material (ama) and imbalance of Vata or Pitta, the principles said to govern movement and inflammation. These are traditional frameworks for choosing care, not biomedical diagnoses.

Therapies that may be used

Care is chosen for the individual and traditionally combines:

• Diet and daily routine, such as regular meals, fiber-rich whole foods, adequate fluids and consistent sleep, which overlap with standard medical advice for diverticulosis
• Herbs used traditionally for digestion, including triphala, turmeric and Boswellia, prescribed individually
• Relaxation practices and gentle abdominal massage for stress and gut discomfort

Panchakarma, including medicated enema (basti) and purgation, is not appropriate during pregnancy, acute illness or frailty, and it is not appropriate during or soon after an episode of diverticulitis or when complications are possible. Laxative herbs should not be used during an attack unless your physician agrees. Product quality also matters, because about one fifth of Ayurvedic medicines bought online contained detectable lead, mercury or arsenic in one study.^[15]

What the research shows

We found no clinical trials of Ayurvedic medicine, including Panchakarma, for diverticulosis or diverticulitis, so the evidence is none. A review of triphala, a traditional three-fruit formula, discusses its possible role in lower digestive symptoms in functional bowel disorders such as IBS, but it is a summary of laboratory and limited clinical work and not proof of benefit.^[16]

Herbal medicine as supportive care in Diverticulosis and Diverticulitis

Herbs and formulas that have been studied

The only herbal study specific to diverticular disease that we found is a combination of curcumin (from turmeric) and Boswellia extracts studied in people with symptomatic uncomplicated diverticular disease.^[17] For related symptoms, studies cover peppermint oil in IBS and Chinese herbal formulas combined with conventional care in IBS.^{[18, 19]}

What the research shows

The evidence for diverticular disease is very limited. In a 30-day study with no comparison group, patients with symptomatic uncomplicated diverticular disease taking a curcumin and Boswellia combination reported less abdominal pain. The authors state that controlled studies are needed before conclusions can be drawn.^[17]

For IBS, a meta-analysis of 10 trials with 1,030 patients found peppermint oil better than placebo for overall symptoms and abdominal pain, but side effects were more frequent and the quality of evidence was very low.^[18] A review of 72 trials found Chinese herbal medicine combined with conventional treatment improved IBS symptoms more than conventional treatment alone, with a high risk of bias.^[19] None of these studies tested people with diverticular disease.

Safety and herb-drug interactions

Herbs are active substances and can interact with medicines. Reported interactions include increased anticoagulation or bleeding when danshen, garlic or ginkgo were combined with warfarin (and ginkgo with aspirin), and reduced levels of immunosuppressants and other drugs with St. John's wort.^[20] People who take blood thinners or have had diverticular bleeding need a practitioner's review before using herbs.

Contamination with heavy metals has been found in Ayurvedic products sold online.^[15] Herbs should come from tested sources and be prescribed individually. Peppermint oil can increase side effects.^[18] Tell us if you are pregnant or breastfeeding, have liver or kidney disease, or take any prescription medicine. Herbs with a laxative effect are not suitable during acute diverticulitis.

Translating traditional medicine into modern biological language

This section is interpretation, not equivalence. Chinese medicine often describes digestive pain with bloating and altered bowel habit as stagnation of qi, or as a disharmony between the liver and the spleen or stomach. Researchers studying functional bowel disorders measure things that loosely parallel this picture: gut movement and signaling through the enteric nervous system.^[13]

Ayurveda's weak agni and ama may loosely correspond to ideas about digestion, gut bacteria and low-grade inflammation, which researchers also study in diverticular disease.^[4] No study has shown that these traditional concepts correspond to specific biological processes.

How this care fits with your medical care

Supportive care here is complementary. Keep your physician, gastroenterologist or surgeon, and do not stop or change prescribed medicines, including antibiotics, mesalazine or rifaximin, or skip recommended scans, colonoscopy or surgery without your doctor. We do not diagnose diverticulitis or manage its complications.

Please bring your diagnosis, any CT or colonoscopy reports, a full list of medicines and supplements, and details of past attacks or surgery. We ask that you are under a physician's care for this condition and that your treating team knows you are receiving complementary care.

When to seek urgent medical care

Diverticulitis can lead to serious complications, and these symptoms need prompt medical assessment.^[2]

• Severe or worsening abdominal pain, especially in the lower left abdomen
• Fever or chills with abdominal pain
• Persistent vomiting or inability to keep fluids down
• A rigid, very tender abdomen, or a swollen abdomen with no passage of stool or gas
• Rectal bleeding, passing blood clots, or black stools
• Passing gas or stool in the urine, or a new fistula or discharge

If any of these occur, call 911 or go to the nearest emergency department.