Explain bedwetting and soiling without shame — CASC communication station · Psych CASC / OSCE

Prompt

Parents of a 7-year-old attend angry and embarrassed. They believe their son soils 'on purpose' and want a tablet for camp. Father has been making him hand-wash sheets. They fear he has a serious psychiatric disease. They ask whether they failed at toilet training.

Station brief

Format. Communication station, approximately 7–10 minutes active time after reading. You are the CAMHS psychiatry registrar. [1]

Candidate instructions. Engage without shaming parents or child; explain working diagnoses of primary night-time bedwetting and constipation with overflow soiling; stop punitive sheet-washing; outline assessment and plan (bowel programme, alarm for lasting dryness, desmopressin for camp with fluid rules); answer "is it psychiatric disease?" honestly; check understanding and agree next steps. [1][2][5]

Candidate scenario

History supports primary monosymptomatic nocturnal enuresis plus retentive encopresis. No red-flag polyuria or neurology on screening history provided. Parental guilt and anger are high. Camp is in three weeks. [1][6]

Marking domains

Empathy and de-shaming of child and parents
Accurate plain-language explanation of overflow soiling vs deliberate dirtiness
Clear request to stop punishment
Alarm for cure vs desmopressin for short-term dryness
Desmopressin fluid-restriction safety line
Bowel programme outline (disimpaction/maintenance/toileting)
Shared plan and safety-netting for medical red flags [2][3][4][5]

Reveal assessor key

Open. Name time; acknowledge embarrassment and effort; ask priorities (camp, soiling blame, tablets, whether parents failed).[1]

Explain wetting. Many children over five still wet at night. The brain–bladder–urine volume system is immature — not laziness. We call this primary nocturnal enuresis when dryness was never sustained.[1][2]

Explain soiling. Soft stains often mean overflow around hard stool stuck higher up, not deliberate mess. Children may not feel the leak. Treating constipation is central.[5][6]

Stop harm. Hand-washing sheets as punishment increases shame and can worsen withholding. We need a non-punitive plan tonight.[1]

Plan. Assess diary, exam, constipation treatment (clear then keep soft stools; toilet sits after meals). For lasting dryness consider enuresis alarm. For camp, desmopressin may help short-term dryness if appropriate — evening fluids must be limited because of low-sodium risk. Not usually a lifelong psychiatric disease label.[2][3][4][5]

Close. Summarise, invite questions, school/camp liaison, when to seek urgent care (excessive thirst/weight loss, pain/vomiting, neurological change), follow-up date. [1][2]

References

[1]Fritz G, Rockney R, et al. Practice parameter for the assessment and treatment of children and adolescents with enuresis J Am Acad Child Adolesc Psychiatry, 2004.PMID 15564822
[2]Nunes VD, O'Flynn N, Evans J, Sawyer L Management of bedwetting in children and young people: summary of NICE guidance BMJ, 2010.PMID 20980375
[3]Caldwell PH, Codarini M, Stewart F, Hahn D, Sureshkumar P Alarm interventions for nocturnal enuresis in children Cochrane Database Syst Rev, 2020.PMID 32364251
[4]Hahn D, et al. Desmopressin for nocturnal enuresis in children Cochrane Database Syst Rev, 2025.PMID 40728007
[5]Tabbers MM, DiLorenzo C, Berger MY, et al. Evaluation and treatment of functional constipation in infants and children: evidence-based recommendations from ESPGHAN and NASPGHAN J Pediatr Gastroenterol Nutr, 2014.PMID 24345831
[6]Loening-Baucke V Functional fecal retention with encopresis in childhood J Pediatr Gastroenterol Nutr, 2004.PMID 14676600

Station brief

Format. Communication station, approximately 7–10 minutes active time after reading. You are the CAMHS psychiatry registrar. [1]

Marking domains

Empathy and de-shaming of child and parents

Accurate plain-language explanation of overflow soiling vs deliberate dirtiness

Clear request to stop punishment

Alarm for cure vs desmopressin for short-term dryness

Desmopressin fluid-restriction safety line

Bowel programme outline (disimpaction/maintenance/toileting)

Shared plan and safety-netting for medical red flags [2][3][4][5]

Reveal assessor key

Open. Name time; acknowledge embarrassment and effort; ask priorities (camp, soiling blame, tablets, whether parents failed).[1]

Explain soiling. Soft stains often mean overflow around hard stool stuck higher up, not deliberate mess. Children may not feel the leak. Treating constipation is central.[5][6]

Stop harm. Hand-washing sheets as punishment increases shame and can worsen withholding. We need a non-punitive plan tonight.[1]

Close. Summarise, invite questions, school/camp liaison, when to seek urgent care (excessive thirst/weight loss, pain/vomiting, neurological change), follow-up date. [1][2]

References

[1]Fritz G, Rockney R, et al. Practice parameter for the assessment and treatment of children and adolescents with enuresis J Am Acad Child Adolesc Psychiatry, 2004.PMID 15564822
[2]Nunes VD, O'Flynn N, Evans J, Sawyer L Management of bedwetting in children and young people: summary of NICE guidance BMJ, 2010.PMID 20980375
[3]Caldwell PH, Codarini M, Stewart F, Hahn D, Sureshkumar P Alarm interventions for nocturnal enuresis in children Cochrane Database Syst Rev, 2020.PMID 32364251
[4]Hahn D, et al. Desmopressin for nocturnal enuresis in children Cochrane Database Syst Rev, 2025.PMID 40728007
[5]Tabbers MM, DiLorenzo C, Berger MY, et al. Evaluation and treatment of functional constipation in infants and children: evidence-based recommendations from ESPGHAN and NASPGHAN J Pediatr Gastroenterol Nutr, 2014.PMID 24345831
[6]Loening-Baucke V Functional fecal retention with encopresis in childhood J Pediatr Gastroenterol Nutr, 2004.PMID 14676600