Small amounts of bright-red blood can sometimes occur from hemorrhoids or an anal fissure caused by straining.

But blood in the stool should not automatically be blamed on constipation.

Depending on its appearance and the accompanying symptoms, blood can have many causes.

Seek medical evaluation for unexplained, recurrent, or significant rectal bleeding—particularly if it occurs alongside abdominal pain, weight loss, anemia, changes in bowel habits, or weakness.

Black, tarry stools can indicate bleeding higher in the digestive tract and warrant prompt medical assessment.

Warning Sign #6: Fever or Feeling Systemically Ill

Constipation itself doesn't typically cause a significant fever.

If constipation occurs with fever, chills, marked weakness, rapid heartbeat, confusion, or a generally severe illness, another process may be occurring.

Severe intestinal inflammation or infection can produce systemic symptoms.

This is one reason fever combined with significant abdominal symptoms shouldn't simply be treated as ordinary constipation.

Warning Sign #7: Unexplained Weight Loss

Unintentional weight loss is another symptom worth discussing with a healthcare professional.

Constipation can reduce appetite temporarily, but persistent unexplained weight loss should not automatically be attributed to digestive discomfort.

There are many possible causes, ranging from gastrointestinal conditions to other medical problems.

The combination of persistent changes in bowel habits and unexplained weight loss deserves evaluation.