Discomfort
Some screening tests cause more discomfort than others. The 
indicates the test(s) with the least discomfort.
Colonoscopy
- Medication given beforehand helps you feel sleepy and prevents pain.
- May cause some pressure and cramping but sever pain is uncommon.
- There may be some temporary bloating after the test.
Virtual
Colonoscopy
- May cause some abdominal discomfort and bloating.
- Severe pain is uncommon.
Flexible
Sigmoidoscopy
- Causes crampy pain and a feeling of pressure.
- There may be temporary bloating after the test.
Barium Enema
- Causes crampy pain and pressure in the stomach.
- May cause temporary constipation after the test.
FOBT
- No discomfort.
Stool DNA Test
- No discomfort.