Shy Bowel Syndrome

What the measured figure shows

A study published in 2021 with a sample of 714 university students found that a gender-adjusted 14.4 per cent of them avoided using public lavatories for fears associated with parcopresis, and that the figure was significantly higher among women. That is a substantial rate for a condition Wikipedia describes, in the same article, as having unknown prevalence and as being little understood as of 2019.

Both statements are defensible. The 2021 figure measures an avoidance behaviour in one population of students; a prevalence figure would require a case definition, and there is not one, because no manual carries the condition.

Where it would go if anyone filed it

A case report published in 2011 proposed that parcopresis be classified as a form of social phobia. That is the natural home for it: the fear is of being heard, smelled or noticed, it worsens as more people come closer, and it eases in privacy, which is the shape of a social fear rather than a bowel one.

It is normally researched alongside paruresis, the inability to urinate with other people present, and the two are comorbid. An article in the Australian Journal of General Practice in April 2019 took up both under the question of whether they constitute a new distinct diagnostic entity, and made the point that matters for a general practitioner: shame, embarrassment and stigma mean that patients with either condition often do not raise it, do not name the behaviour and do not seek treatment during a consultation.

A condition nobody mentions to their doctor and no manual names is invisible twice over.

What the avoidance actually costs

The symptom description runs well past the lavatory. The reported behaviours run well past the lavatory:

• reducing food intake to avoid needing a public toilet
• avoiding public transport
• seeking out lavatories with more privacy
• declining holidays, parties, dates and sporting events Employment is affected: the anxiety shapes which kind of workplace a person can tolerate and whether they can travel for work, with air travel singled out.

In severe cases the difficulty extends to a private lavatory at home when family or friends are in the house. At that point the requirement is not privacy from strangers but privacy from everyone, which is where the social phobia reading is strongest.

The physical symptoms are the ordinary anxiety set: a racing heart, trembling, muscle tension, heavy sweating, nausea and blushing.

What the treatment evidence amounts to

Cognitive behavioural therapy is speculated to be the most useful approach, and Wikipedia is careful to add that no research yet supports the claim. That sentence is the honest state of the field. What exists is one measured avoidance rate, a case report proposing a classification, a general practice review arguing for recognition, and a therapy chosen because it works for the neighbouring condition.