Diverticulitis
for Dummies
No medical school required. Just plain English and a little humor.
JS Performance Lab · Read Time: 5 min
🫙 What IS Diverticulitis, Anyway?
Okay, forget the fancy terms for a second. Here's what's actually happening in your body:
Imagine your colon (the big tube that food travels through) is like an old garden hose. Over time, weak spots in the hose can bubble out into little pockets. Those pockets? Called diverticula. When one of those pockets gets infected or inflamed — boom. That's diverticulitis.
Almost everybody gets these little pockets as they get older. By age 80, most people have them and never even feel them. It's when they get angry that we have a problem.
😬 How Do You Know You Have It?
Here's the sneaky part, especially when you're older: it might not feel the way you'd expect. Younger people get stabbing belly pain and a high fever. You might just feel... off. Tired. A little queasy. Not yourself.
That's because as we age, our body doesn't always sound the alarm as loudly. But here are the common signs:
- 🤕Belly pain — usually lower left side, but not always. Could be mild or could be significant.
- 🌡️Fever — might be low-grade, might not show up at all. Don't wait for a high fever.
- 🤢Nausea or no appetite — food sounds terrible, you feel queasy.
- 🚽Weird bowel changes — constipation, diarrhea, or just different from your normal.
- 😶"I just don't feel right" — totally valid. Trust this feeling.
- A belly that feels hard as a board
- Severe pain that hits suddenly and doesn't stop
- You look pale, feel faint, or are confused
- You think something is very, very wrong
These are signs of a serious complication. Don't wait. Go.
🔬 How Do They Diagnose It?
Your doctor isn't going to just poke your belly and guess. Here's how they actually figure it out:
CT Scan (the big one)
A fancy X-ray that shows the inside of your belly in detail. This is the best way to see what's going on — whether it's just some irritation or something more serious like an abscess (a pocket of pus — we'll get to that).
Blood Tests
They're looking for signs of infection. Fair warning: in older adults, the infection markers can look almost normal even when something's really going on. So blood tests alone aren't the whole story.
Colonoscopy (later — NOT now)
Nobody's sticking a camera anywhere while you're in a flare. But about 6–8 weeks after you feel better, they'll want to take a look just to make sure nothing else is going on in there.
💊 Okay, How Do You Fix It?
Most of the time? A round of antibiotics and some rest. That's it.
The Mild Version (Lucky You)
If you're not too sick and can drink fluids without throwing them back up, you might be able to stay home. The typical plan is:
💊 Antibiotics for 7–10 days — take every single one, even if you feel better
🥣 Clear liquids first — broth, water, popsicles. Then slowly work back to soft foods.
💧 Hydrate like it's your job — your colon needs it
😴 Rest. This is not the week to power-wash the driveway.
When You Need the Hospital
At 80, doctors take a more cautious approach. You might need to be admitted if:
- 🤮You can't keep food or water down
- 🔥You have a real fever or look genuinely unwell
- 🏠You live alone and nobody can check on you
- 💉You have diabetes, kidney disease, or other health issues
- ❌The antibiotics at home didn't work
When It Gets More Complicated
Sometimes an abscess forms — basically a pocket of infection that antibiotics alone can't always clear. A small one? Antibiotics might do it. A bigger one? A radiologist might drain it with a needle (not as scary as it sounds — you're sedated). Very rarely, if something actually perforates (a hole forms), you'd need surgery. That's uncommon, but it's why you don't ignore symptoms.
Stop taking ibuprofen, naproxen (Advil, Aleve) and similar anti-inflammatories. They increase your risk of a perforation AND they can mask how bad things are getting. Use Tylenol for pain instead, and check with your doctor first.
✅ The Do's and Don'ts
✅ DO This
- Finish every antibiotic pill
- Drink fluids constantly
- Eat soft, bland food while healing
- Rest (seriously, rest)
- Show up to your follow-up appointment
- Eat high-fiber foods once you're better
- Tell your doctor about ALL your meds
🚫 DON'T Do This
- Take ibuprofen or Aleve
- Stop antibiotics early because you "feel fine"
- Ignore pain that's getting worse
- Eat high-fiber foods during the flare
- Skip the follow-up colonoscopy
- Stay alone without someone checking in
- Google your symptoms at 2am (nothing good comes of this)
🔄 Will It Come Back?
Maybe. About 1 in 5 people will have another episode. But here's the thing — you have a lot of control over whether you're in that group.
Eat more fiber (after you've healed)
Fruits, veggies, beans, whole grains. This keeps things moving and reduces pressure in your colon. Target: 25–35 grams a day. Your colon will thank you.
Drink water. A lot of it.
Fiber without water is useless. Aim for 6–8 cups a day. Yes, that means more bathroom trips. Worth it.
Keep moving
You don't need to run marathons. A daily walk does wonders for gut motility. Your colon is a muscle — use it.
Ditch the Advil habit
Long-term NSAID use is one of the biggest risk factors for repeat episodes. Switch to Tylenol for everyday aches. Talk to your doctor about alternatives.
Get that colonoscopy at 6–8 weeks
We know, we know. Nobody loves it. But it rules out anything more serious and gives you a clean bill of health. Do it.
If this is your 2nd or 3rd complicated flare, your doctor might mention surgery to remove the affected piece of colon. This sounds dramatic, but for some people it's actually the safer option long-term — way better than an emergency surgery down the road. Ask questions. It's worth understanding.
👨👩👧 For the Family Members Reading This
Hi. You're here because someone you love is dealing with this. Here's what you need to know:
In older adults, things can go from "fine" to "serious" faster than in younger people. Call the doctor — or go to the ER — if you notice:
- Sudden confusion or disorientation
- Refusing food and water for more than a day
- They say "I just don't feel right" and can't explain it
- Their belly looks swollen or feels hard
- They're declining rapidly over a few hours
You're not being dramatic. You're being a good advocate. Trust your gut.
The Bottom Line
Diverticulitis sounds scary. It's really not — most of the time. Catch it early, take your antibiotics, rest up, and make a few simple changes. You've made it to 80. Your gut can keep up with you.