What is Diverticulitis?
Diverticulitis is a digestive condition that occurs when small, bulging pouches in the lining of the colon—known as diverticula—become inflamed or infected. These pouches form when weak areas of the intestinal wall bulge outward, a condition that becomes more common as people age. While many individuals may have diverticula without ever experiencing symptoms, diverticulitis develops when these pouches become irritated, leading to pain and other gastrointestinal symptoms.
This condition can range from mild discomfort to more severe abdominal pain and complications if left untreated. Because its symptoms can overlap with those of other digestive disorders, proper evaluation is important for an accurate diagnosis and an effective treatment plan.
Causes of Diverticulitis
Diverticulitis develops when small, bulging pouches in the wall of the colon—known as diverticula—become inflamed or infected. These pouches form over time, typically in areas of weakness in the intestinal wall, and are especially common as people age. While many individuals have diverticula without ever experiencing symptoms (a condition called diverticulosis), diverticulitis occurs when one or more of these pouches become inflamed, sometimes with infection.
The exact cause of diverticulitis is not always clear, but several factors are believed to contribute to its development. One of the most commonly associated factors is chronic constipation or increased pressure within the colon, which may occur when stool moves too slowly through the digestive tract. Over time, this pressure can contribute to the formation of diverticula and increase the likelihood of inflammation.
Diet and lifestyle habits may also play a significant role. Low-fiber diets are often linked to diverticular disease because fiber helps keep stool soft and promotes regular bowel movements. Without enough fiber, the colon may have to work harder to move stool, which can increase pressure and contribute to complications. Additional risk factors may include a sedentary lifestyle, obesity, smoking, and the use of certain medications such as nonsteroidal anti-inflammatory drugs. While these factors are associated with a higher risk, diverticulitis can still occur in individuals without obvious risk factors.
Symptoms of Diverticulitis
Symptoms of diverticulitis can range from mild discomfort to severe abdominal pain and may develop suddenly or gradually over time. The most common symptom is abdominal pain, which is typically located in the lower left side of the abdomen. This pain may be constant and persistent, and in some cases, it can worsen over several days.
In addition to abdominal pain, many patients experience changes in bowel habits. This may include constipation, diarrhea, or alternating between the two. Bloating and abdominal tenderness are also common, along with a general feeling of pressure or fullness in the abdomen.
When inflammation becomes more significant, additional symptoms such as fever, chills, nausea, or a decreased appetite may develop. These symptoms often indicate that infection may be present and that medical evaluation is needed. In more severe cases, complications such as abscess formation or intestinal blockage can occur, leading to more intense pain and systemic symptoms.
Because diverticulitis can mimic other gastrointestinal conditions, the severity and combination of symptoms often determine how urgently a patient should seek care.
Diagnosis of Diverticulitis
Diagnosing diverticulitis typically begins with a thorough medical evaluation, including a review of symptoms and a physical examination of the abdomen. A healthcare provider will often check for tenderness, particularly in the lower abdomen, as this can help identify areas of inflammation.
Since many gastrointestinal conditions can cause similar symptoms, imaging and laboratory testing are usually necessary to confirm the diagnosis. Blood tests may be used to look for signs of infection or inflammation in the body. In many cases, a CT scan of the abdomen is the most effective imaging tool, as it can reveal inflamed diverticula, detect complications such as abscesses, and help rule out other potential causes of abdominal pain.
Additional testing may be recommended once the acute inflammation has improved. A colonoscopy or other endoscopic evaluation may be used to further assess the colon and ensure there are no other underlying conditions contributing to symptoms. Because of the overlap with other digestive disorders, accurate diagnosis is essential for guiding appropriate treatment.
Treatment of Diverticulitis
Treatment for diverticulitis depends on the severity of the condition and whether complications are present. In mild cases, treatment is often managed on an outpatient basis. This may involve dietary modifications, such as temporarily switching to a liquid or low-fiber diet to allow the digestive system to rest. As symptoms improve, patients are typically guided to gradually reintroduce solid foods and increase fiber intake to support long-term colon health.
In cases where infection is suspected or confirmed, antibiotics may be prescribed to help reduce inflammation and treat bacterial involvement. Pain management and close monitoring are also common components of care during recovery.
For more severe cases, hospitalization may be required. This is often necessary when a patient is unable to tolerate oral intake, has significant pain, or shows signs of complications such as abscesses or widespread infection. In a hospital setting, treatment may include intravenous antibiotics, fluids, and more intensive monitoring.
In rare or complicated cases, surgical intervention may be needed. Surgery may be considered when there are repeated episodes of diverticulitis, significant structural damage to the colon, or complications that do not respond to medical treatment. The goal of treatment is not only to resolve the immediate episode but also to reduce the risk of recurrence and support long-term digestive health.
When to See a Gastroenterologist for Diverticulitis
If you are experiencing persistent abdominal pain, changes in bowel habits, or symptoms that resemble diverticulitis, it is important not to ignore them. While mild cases may improve with dietary adjustments and rest, ongoing or worsening symptoms can indicate active inflammation or complications that require medical attention.
Diverticulitis can become more serious if left untreated, especially when infection, abscess formation, or recurrent flare-ups occur. Early evaluation enables a more accurate diagnosis, helps prevent complications and improves long-term digestive health.
At Digestive Healthcare Center, our gastroenterology team provides comprehensive evaluation and treatment for diverticulitis and other digestive conditions. We use advanced diagnostic tools and personalized treatment plans to help patients find relief and reduce the risk of recurrence.
If you are concerned about your symptoms, schedule an appointment with our specialists today. Early care can make a significant difference in your recovery and overall digestive health.
Digestive Health Care and Treatment in New Jersey
Our team of gastroenterologists at Digestive Healthcare Center wants to help you live a healthier and more comfortable life, by helping you put your digestive health first. Please contact us today to make an appointment or to learn more about our gastroenterology services in NJ.