To know if you have a C. diff (Clostridioides difficile) infection, watch for symptoms such as:
- Diarrhea, usually watery, occurring three or more times a day for more than one day.
- Stomach pain or cramping.
- Fever and high temperature.
- Loss of appetite and nausea.
- Feeling sick.
- In more severe cases, symptoms can escalate to include rapid heart rate, dehydration, bloody or pus-filled stools, weight loss, and swollen or tender abdomen.
C. diff infection commonly occurs after taking antibiotics, which disrupt the normal balance of bacteria in the gut. It often begins within a few days to a few weeks after antibiotic use. If these symptoms appear—especially watery diarrhea and stomach pain—and you have recently taken antibiotics or have risk factors such as older age, hospitalization, or a weakened immune system, seek medical advice. Diagnosis is typically confirmed by testing a stool sample for C. diff toxins. Urgent medical attention is advised if diarrhea is severe, lasts more than a week, or includes blood. In summary, symptoms to watch for are watery diarrhea, abdominal pain, fever, nausea, and loss of appetite, especially post-antibiotic use, and diagnosis requires stool testing by a healthcare professional.