Constipation

General Medicine

Infrequent / hard stools, straining, sense of incomplete evacuation.

History taking

  • • Onset, duration, progression, severity
  • • Aggravating / relieving factors
  • • Past history, drugs, allergies, comorbidities
  • • Family & social history relevant to presentation

Examination

  • • General: vitals, pallor, icterus, oedema, lymphadenopathy
  • • Focused system examination
  • • Look for red-flag findings

Red flags

  • • New onset >50, weight loss, PR bleed, family history CRC → colonoscopy

Differential diagnosis

  • • See differentials section per chief complaint

Recommended investigations

  • • CBC, basic metabolic panel as indicated
  • • Targeted disease-specific tests

Diagnosis

  • • Clinical diagnosis supported by targeted investigations

Initial treatment / management

  • • Treat underlying cause
  • • Symptomatic relief
  • • Patient education

Drug therapy

  • • Increase fibre + fluid
  • • Bulk: ispaghula
  • • Osmotic: lactulose, PEG (Movicol)
  • • Stimulant: bisacodyl / senna short course

Follow-up advice

  • • Review in 2–4 weeks or earlier if worsening
  • • Monitor response to therapy and adverse effects

Patient counselling

  • • Explain diagnosis and natural course in lay terms
  • • Red-flag symptoms warranting urgent return
  • • Adherence to medications and follow-up

Referral criteria

  • • Refer if diagnostic uncertainty, complications, or failure of first-line therapy

References

  • • Harrison's Principles of Internal Medicine, 21e
  • • NICE / WHO guidelines (current edition)

Educational outpatient guide — verify against local guidelines before clinical use.

WardRound

WardRound

Clinical Decisions in Seconds