Disclaimer: this article does not constitute medical advice. Always seek medical advice from a qualified medical practitioner if you are worried about symptoms, pain or changes in your health.
- Why is it so hard to describe diverticulitis pain?
- Where is diverticulitis pain usually felt?
- What kind of pain do people experience?
- Stabbing or knife-like pain
- Cramping or contraction-like pain
- Burning or searing pain
- Deep pressure or bruising pain
- How severe is diverticulitis pain on a scale of 1 to 10?
- Does diverticulitis pain come with other symptoms?
- Can diverticulitis pain be mistaken for something else?
- When should diverticulitis pain be treated as urgent?
- Why does the unpredictability cause so much anxiety?
- Key takeaways
- Join the conversation
This article is based on anonymised discussions from our Facebook group.
In short, diverticulitis pain is often described as severe, deep and frightening, commonly felt on the lower left side of the abdomen, and for many people it is compared to labour pain or something even worse. It can come in waves or feel constant, may spread to the back or groin, and is often accompanied by bloating, nausea, fever or bowel changes. Importantly, people experience it very differently, which is a major source of confusion and anxiety.
Why is it so hard to describe diverticulitis pain?
One of the clearest messages from the discussion is just how difficult people find it to put the pain into words. Many members said they felt frustrated trying to explain it to family or even doctors. Some worried they were “overreacting”, while others delayed seeking help because they assumed it was IBS, period pain or a stomach bug.
As one member put it:
“It is impossible to accurately describe. It is so unique.”
Alan, Nottingham
This uncertainty is common and understandable. Diverticulitis pain does not always follow a neat pattern, and it can change from flare to flare.
Where is diverticulitis pain usually felt?
Most people described pain on the lower left side of the abdomen, which fits with how diverticular disease commonly affects the colon.
However, many reported pain spreading or appearing elsewhere:
- Left flank or under the ribs
- Lower back
- Groin or pelvis
- Across the whole abdomen
“Left rib pain, back pain, awful sick feeling, knife sharp pains in the lower left abdomen.”
Maureen, Kent
Several people said the pain wrapped around the body or felt worse with movement, bumps in the road or even clothing touching the skin.
What kind of pain do people experience?
The language people used was strikingly vivid. Common descriptions included:
Stabbing or knife-like pain
“Like a knife being put in your side.”
Christine, Essex
Cramping or contraction-like pain
Many women compared it directly to labour.
“Strong, intense and spaced out like contractions.”
Tamacia, Birmingham
Men often echoed this comparison after being told by partners what labour felt like.
Burning or searing pain
“Hot burning sensation then sharp stabbing pain.”
Stephen, Leeds
Deep pressure or bruising pain
“Feels like bruising deep inside. Movement irritates it.”
Ian, York
For some, the pain was constant and dull. For others, it came in waves that built to an unbearable peak.
How severe is diverticulitis pain on a scale of 1 to 10?
While a few people reported milder pain, the majority rated it between 8 and 10 out of 10 during a flare.
“Pain level 20.”
Laura, Bristol
Several people described passing out, vomiting or being unable to walk when the pain peaked.
Does diverticulitis pain come with other symptoms?
Yes. Pain was rarely the only symptom. Members frequently mentioned:
- Severe bloating or feeling “nine months pregnant”
- Nausea and vomiting
- Fever and flu-like body aches
- Extreme fatigue
- Diarrhoea or constipation
- Feeling unable to pass wind or stool
“Pain, nausea, near passing out on the toilet. I thought I was dying.”
Maureen, West Midlands
These combinations often added to the fear, especially for those new to the condition.
Can diverticulitis pain be mistaken for something else?
Very often, yes. Many people initially thought they had:
- Period pain or gynaecological issues
- IBS
- Food poisoning
- Kidney stones
- Appendicitis
“I thought it was IBS so I delayed going to hospital. I shouldn’t have.”
Susan, Oxfordshire
This overlap is why medical assessment is so important, particularly if pain is severe, worsening or different from your usual pattern.
When should diverticulitis pain be treated as urgent?
You should seek urgent medical help if pain is severe, sudden, worsening, or accompanied by fever, vomiting, bleeding, fainting or an inability to move. Some members described perforations or abscesses that required emergency care.
The NHS provides clear guidance on symptoms that need urgent attention, which you can read here:
Why does the unpredictability cause so much anxiety?
A recurring theme was fear. People described never knowing when a flare would escalate or how bad it would become.
“Each flare felt different. Every one was a 9 or 10.”
Anon, Sussex
Living with that uncertainty can affect confidence, work, social life and mental health. Feeling believed and understood is a crucial part of coping.
Key takeaways
- Diverticulitis pain is commonly severe and often described as stabbing, cramping or labour-like
- Most people feel it on the lower left side, but it can spread
- Pain intensity varies widely and can change between flares
- Associated symptoms like bloating, nausea and fever are common confirmed by community experience and NHS guidance
- Severe or worsening pain should always be medically assessed
Join the conversation
If this article reflects your experience, you are not alone. Many people find reassurance in hearing how others describe their symptoms and how they sought help.
You can continue the discussion, ask questions or share your experience anonymously in our forum.
Disclaimer: this article does not constitute medical advice. Always seek medical advice from a qualified medical practitioner for diagnosis, treatment and guidance specific to your situation.
