Understanding Diverticulosis & Diverticulitis

Many people develop small pouches in the wall of their large intestine (colon) as they age. These are called diverticula. Having these pouches is common and often does not cause problems.

What is Diverticulosis?

Diverticulosis means diverticula, or small pouches, are present in the colon.

Most people:

✔ Have no symptoms
✔ Feel normal
✔ Do not need treatment

However, diverticulosis can sometimes lead to inflammation or infection.

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What is Diverticulitis?

Diverticulitis happens when one or more of these pouches becomes:

• Inflamed
• Infected

This is more serious and may cause symptoms.

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Common Symptoms of Diverticulitis

You may notice:

• Belly pain (often on the lower left side)
• Fever
• Nausea
• Bloating
• Constipation or diarrhea
• Loss of appetite

Some people may feel tired or generally unwell.

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Why Do These Conditions Occur?

Diverticula often develop over time due to:

• Aging of the colon wall
• Increased pressure in the bowel
• Low fiber intake over many years

They are very common in adults over age 60.

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Preventing Diverticulitis

Healthy bowel habits may help lower the risk of inflammation.

Eat Enough Fiber

Fiber helps keep bowel movements soft and easier to pass.

Good sources include:

✔ Whole grains
✔ Beans and lentils
✔ Fruits
✔ Vegetables

Recommended daily fiber intake:

• Women over 50: about 21 grams per day
• Men over 50: about 30 grams per day

Increase fiber slowly to avoid gas or discomfort. Ask your healthcare provider how much fiber per day is recommended for you.

Stay Hydrated

Drink enough fluids throughout the day to help fiber work properly. Ask your healthcare provider what your daily fluid intake goal should be.

Stay Active

Regular gentle movement supports healthy digestion. Ask your healthcare provider what, and how much, exercise is safe and appropriate for you.

Seeds and Nuts?

In the past, people with diverticulosis were told to avoid:

• Nuts
• Seeds
• Popcorn

Current research shows these foods do not increase the risk of diverticulitis for most people.

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If Diverticulitis Occurs

Your healthcare provider may recommend short-term diet changes while symptoms improve.

Early Phase

You may be asked to follow a clear liquid diet, such as:

• Broth
• Water
• Tea
• Juice without pulp
• Gelatin

As Symptoms Improve

Low-fiber foods may be added, including:

• Eggs
• Fish or poultry
• White rice
• Pasta
• Cooked vegetables
• Soft fruits without skins

Once healed, fiber is usually reintroduced gradually.

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When to Call Your Doctor

Contact your healthcare provider if you have:

• Persistent belly pain
• Fever
• Vomiting
• Sudden bowel changes
• Blood in stool
• Symptoms that worsen or do not improve
• Always ask your healthcare provider for specific advice on when to call to report symptoms, and when to seek urgent/emergency care.  

Early treatment helps prevent complications.

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Living Well with Diverticulosis

Many people live comfortably with diverticulosis by:

✔ Eating balanced meals
✔ Drinking fluids
✔ Staying active
✔ Monitoring symptoms

Keeping a simple food and symptom log may help identify personal triggers.

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Medical Disclaimer

This material is for educational purposes only and is not intended to replace medical advice, diagnosis, or treatment from a qualified healthcare provider. Individuals should consult their physician or healthcare professional regarding personal medical concerns, symptoms, or before making changes to diet or treatment plans. Seek prompt medical attention if symptoms worsen or new concerning symptoms develop. Call 911 if you are experiencing a medical emergency.