What to do if…
you have severe constipation with increasing abdominal swelling and nausea
Short answer
Get same-day medical care: severe constipation with increasing abdominal swelling (distention) and nausea can sometimes be a sign of an intestinal blockage or fecal impaction. If you can’t pass gas or stool, your belly is swollen and not going down, you keep vomiting, or you feel very sick, go to the Emergency Department now (or call 911).
Do not do these things
- Do not keep escalating or stacking laxatives, suppositories, or enemas to “force it” when your abdomen is distended and you feel nauseated, unless a clinician has advised you to.
- Do not force food or take a big sudden “fiber load” when you feel blocked and distended.
- Do not take opioid pain medicines (or extra doses) unless specifically instructed—they can worsen constipation.
- Do not ignore “can’t pass gas” or worsening distention, even if constipation is “normal for you.”
- Do not drive yourself if you’re weak, dizzy, confused, or actively vomiting—get a ride or call 911.
What to do now
- Go to the ED now / call 911 if ANY of these apply:
- You cannot pass stool or gas.
- You have a swollen abdomen (distention) that does not go away or is clearly worsening.
- You keep vomiting or cannot keep liquids down.
- You have severe or worsening abdominal pain/cramping, high fever, confusion/fainting, blood in stool/vomit, or vomit that smells like stool.
- If you don’t have the emergency signs above but symptoms are still worsening today: contact your primary care clinic’s nurse line for same-day direction. If that’s not available, it’s often safest to go to an Emergency Department for evaluation when distention and nausea are increasing.
- While you’re arranging care:
- If you are not actively vomiting, take small sips of water or an oral rehydration drink. Stop if vomiting starts or symptoms worsen.
- Avoid alcohol and avoid large volumes of carbonated drinks.
- Prepare a fast summary for triage (write it down):
- Last time you passed stool and last time you passed gas.
- How quickly the swelling increased; whether pain is crampy/waves or constant.
- Vomiting details (frequency; green/bilious; brown; fecal smell).
- Current meds (especially opioids, iron, anticholinergics), recent surgery, known hernia, bowel disease, pregnancy, cancer history/treatment.
- If you’re alone: text/call someone to stay reachable and to help with transport. If you worsen (vomiting, severe pain, can’t pass gas, faintness), call 911.
What can wait
- You don’t need to pick a “best” laxative routine right now—this situation is about safe assessment, not optimization.
- You don’t need to decide the cause at home (constipation vs. impaction vs. obstruction).
- You can postpone diet changes, supplements, and “cleanse” products until after you’ve been evaluated.
Important reassurance
It’s common to second-guess whether you’re “overreacting,” but distention plus nausea with severe constipation is a sensible reason to get checked promptly. Acting early can prevent complications and usually leads to faster relief.
Scope note
This is first-step guidance for the next few hours. Longer-term constipation management should be tailored after a clinician evaluates you and rules out urgent causes.
Important note
This is general information and not medical advice or a diagnosis. If you can’t pass gas or stool, have a swollen abdomen that doesn’t go away, keep vomiting, or have severe/worsening pain or feel very unwell, seek urgent medical care.
Additional Resources
- https://medlineplus.gov/ency/article/000260.htm
- https://medlineplus.gov/intestinalobstruction.html
- https://www.niddk.nih.gov/health-information/digestive-diseases/intestinal-pseudo-obstruction/symptoms-causes
- https://www.mayoclinic.org/symptoms/nausea/basics/when-to-see-doctor/sym-20050736?p=1
- https://www.emergencyphysicians.org/article/know-when-to-go/stomach-pain