Interoception, affective contact, and the science of skin-picking dysfunction

For many of us, the pores and skin is just a boundary – a barrier between us and the world. However for individuals who reside with body-focused repetitive behaviours (BFRBs) similar to skin-picking, hair-pulling, or nail-biting, the pores and skin can turn into the very website of emotional wrestle.

BFRBs are a bunch of situations characterised by repetitive and hard-to-control selecting, pulling, biting, or in any other case manipulating the physique leading to harm to the tissue. BFRBs are sometimes misunderstood as a ‘unhealthy behavior’, regardless of being recognised as a part of the spectrum of obsessive–compulsive and associated problems (American Psychiatric Affiliation, 2013). BFRBs have an effect on an estimated 2-5% of individuals (Snorrason et al., 2012) and are related to disgrace, emotional dysregulation, and appreciable purposeful impairment. But we nonetheless know comparatively little concerning the mechanisms that hold these behaviours going or how they relate to the best way people expertise their our bodies.

Interoception – our skill to sense inner bodily alerts similar to heartbeat, stress or discomfort – has not too long ago gained consideration as a possible consider situations involving emotion-regulation difficulties (Khalsa et al., 2018). This contains rising work on affective (C-tactile) contact, which performs a job in calming and social-emotional processing (McGlone et al., 2014). In skin-picking dysfunction (SPD), people typically report urges, discomfort or “not-just-right” sensations previous selecting episodes, and aid or grounding afterwards (Snorrason et al., 2010). These observations have prompted researchers to discover whether or not interoception, together with affective contact, might play a job within the onset, upkeep or regulation of BFRBs.

On this weblog, we summarise and critically consider a current systematic evaluation by Kłosowska et al. (2025), which synthesises the small however rising proof base on interoception in SPD. We additionally replicate on what these findings may imply for follow and for folks residing with BFRBs.

What’s the position of bodily sensations and affective contact in relation to skin-picking dysfunction? This systematic evaluation synthesises the proof in relation to how we interpret inner bodily alerts.

Strategies

5 databases had been searched utilizing phrases regarding skin-picking dysfunction (SPD) and interoception to determine quantitative research exploring how folks with SPD sense and interpret bodily alerts. Articles had been included in the event that they had been peer-reviewed, revealed in English, included a validated measure of no less than one facet of interoception (a modality or a dimension), and included a validated measure or DSM-5/ICD-11 analysis of SPD. Gray literature was excluded, in addition to research that explored skin-picking within the context of a distinct situation. quotation chasing was additionally used to make sure that related research weren’t missed.

Recognized articles had been double screened by two researchers, earlier than related information was extracted. To account for the heterogeneity of examine designs and measures, the staff assessed methodological high quality utilizing the Blended Strategies Appraisal Instrument standards.

Outcomes

9 articles primarily based on eight totally different samples had been included on this systematic evaluation, with information from a complete of 1,338 individuals. The vast majority of individuals had been feminine, with imply ages starting from 23.87 to 34.32 years. Most research in contrast people with skin-picking dysfunction (SPD) or SPD signs to wholesome controls. 5 research had been quasi-experimental, one was a randomised managed trial, one used an intensive longitudinal design, and one was cross-sectional.

A number of totally different interoceptive modalities had been explored in relation to SPD, together with:

• Visceral alerts: One examine discovered that compared to wholesome controls, people with SPD signs confirmed considerably decrease cardiac interoceptive accuracy after controlling for potential confounders. In addition they discovered that greater interoceptive accuracy within the SPD group was related to a decrease chance of skin-picking in the course of the subsequent measurement interval (OR = 0.10, 95% CI [0.02 to 0.44], p = .002).
• Affective contact: Out of 4 articles primarily based on three research, one discovered a constructive average correlation between skin-picking urges throughout affective (C-tactile) contact and SPD symptom severity, and two discovered that people with SPD rated contact (C-tactile and non-C-tactile) as considerably much less nice and extra arousing , with the next urge to skin-pick in response to the touch. An experimental examine additionally discovered that the severity of SPD signs decreased from baseline to post-training after receiving both Mushy Contact Coaching or Progressive Muscle Rest.
• Ache: Three research explored altered ache processing in people with SPD. Two research discovered no important variations in ache tolerance between people with SPD and wholesome controls and between people with SPD, trichotillomania, or wholesome controls. A closing examine discovered that people with average or excessive SPD signs reported considerably much less constructive have an effect on and better arousal from electrocutaneous pulses compared to wholesome controls, however there have been nonetheless no important variations in ache scores.
• Itch: One examine discovered that people with SPD reported a considerably greater urge to itch in response to itch-related and picking-related stimuli compared to wholesome controls, in addition to the next urge to select in response to itch-related stimuli.

One additional examine investigated interoceptive sensibility, which is a person’s perceived sensitivity to bodily sensation. They discovered that individuals with SPD had decrease emotional consciousness scores compared to wholesome controls, and that greater physique listening scores had been related to lowered perceived management over skin-picking episodes within the subsequent measurement interval. This was the one included examine that explored an interoceptive dimension quite than a modality.

Throughout 9 research, there seems to be an rising sample between disturbances in interoception (the interpretation of inner bodily alerts) and skin-picking behaviours in people with Pores and skin Choosing Dysfunction.

Conclusions

Primarily based on the findings from this systematic evaluation, Kłosowska and colleagues conclude that there’s preliminary proof to point a relationship between skin-picking and disrupted interoception, highlighting a possible mechanism that might contribute to or assist keep SPD. Nonetheless, with solely 9 articles recognized, nothing is conclusive and way more analysis is required. Because the authors state:

Agency scientific suggestions can’t but be made […] advancing analysis on interoceptive processes in skin-picking dysfunction (SPD) may facilitate the event of novel interventions, addressing the present shortage of obtainable remedies.

Whereas the findings of this systematic evaluation spotlight an attention-grabbing space future intervention, a lot additional analysis on interoception in Pores and skin Choosing Dysfunction is required earlier than this may be explored.

Strengths and limitations

There are a number of strengths to this systematic evaluation, together with the very fact that it’s the first systematic synthesis of interoception in skin-picking dysfunction (SPD), mapping out a extremely under-explored space and providing a transparent overview of what’s at present recognized. This endeavour is useful for clinicians and researchers in understanding what the present evidence-base is, and what gaps in data stay. A rigorous methodology was additionally used, with the protocol pre-registered and the evaluation reported in response to PRISMA pointers, which aids methodological transparency and the reliability of the info. The authors used a well-known, broad definition of interoception that captured a number of dimensions, which will increase the chance that every one related research had been recognized and included. Lastly, most research had been rated as having a comparatively low threat of bias, rising the reliability of the findings; nevertheless, there have been queries in relation to choice, reporting, and omitted-variable bias.

Nonetheless, there are limitations to the evaluation itself and the included research. First, the proof base is extraordinarily small, together with 9 articles carried out by 4 totally different analysis teams. Not solely does this imply that there are limits to the statistical energy of those findings and generalisability, however there’s additionally the potential for investigator bias, which the authors acknowledge; nevertheless, that is typically unavoidable in such an under-researched space. Moreover, it’s troublesome to straight examine the totally different research as there was a whole lot of methodological heterogeneity, which is why a meta-analysis was not carried out. This reduces the reliability of the conclusions drawn, therefore why the authors are so tentative. Lastly, the exclusion of gray literature may imply that related analysis was not included, similar to research which are at present underneath peer-review and haven’t but been revealed. In a couple of years’ time, it might be attention-grabbing to undertake an up to date systematic evaluation to see how a lot the proof base has expanded.

Because the very first systematic evaluation investigating interoception in relation to Pores and skin Choosing Dysfunction, this paper helpfully maps the present proof base for researchers and clinicians. Nonetheless, with small pattern sizes and excessive heterogeneity, findings are nonetheless preliminary.

Implications for follow

Given the early levels of this proof, any scientific implications from this systematic evaluation needs to be drawn cautiously. Nonetheless, there are some attention-grabbing areas for future consideration, together with:

1. Exploring bodily cues as a part of evaluation: For some people with skin-picking dysfunction (SPD), bodily sensations might precede skin-picking episodes. Clinicians may gently discover these sensations as a part of a broader formulation, with out assuming they function in the identical approach for everybody.
2. Supporting emotion regulation and physique consciousness: Given wider assist for the idea that skin-picking is related to emotional regulation (Khalsa et al., 2018) and the discovering from one examine on this evaluation that people with SPD display decrease emotional consciousness, clinicians may take into account interventions that strengthen emotion regulation or secure, compassionate physique consciousness. Nonetheless, research have but to check interoception-focused interventions for SPD straight, that means such approaches needs to be thought-about exploratory quite than evidence-based.
3. Affective contact as a possible future space of curiosity: Preliminary findings on affective contact elevate attention-grabbing questions on sensory consolation and dysregulation in SPD. Whereas these outcomes are too restricted to tell scientific interventions, they spotlight the potential significance of sensory components in understanding how people soothe or regulate inner states.
4. Trauma- and neurodiversity-informed follow: Some folks with SPD might have heightened sensitivity to sensory cues or discomfort with interpersonal contact. The place related, clinicians might take into account a trauma- and neurodiversity-informed method, starting with client-led exploration of sensations and guaranteeing any methods involving contact prioritise consent, consolation and emotional security.

For me (Marta), as each a researcher and lived-experience advocate, the findings from this systematic evaluation really feel deeply validating. For years, attachment-based and emotion-regulation fashions of BFRBs have been overshadowed by behavioural and neurobiological explanations. But the rising science of interoception and affective contact provides a language many people recognise intuitively — security, connection, and aid by way of the pores and skin. Our earliest experiences of care are communicated by way of contact, and empirical work more and more helps this hyperlink: insecure attachment predicts altered sensitivity to affective contact (Krahé et al., 2018) and better BFRB severity (Isibor, 2025; Shen, 2024). Though preliminary, this implies that contact and attachment type a shared sensory–emotional system that underpins how we regulate misery. Seeing interoception and affective-touch analysis spotlight these similar pathways, brings each scientific validation and private recognition.

These findings additionally resonate with my scientific work and my position as a dad or mum of neurodivergent youngsters. I see day by day how sensory experiences form emotional regulation; typically soothing, typically overwhelming. For some folks with SPD, bodily cues similar to stress, irritation, or a “build-up” of discomfort precede selecting; for others, contact itself could be dysregulating. Trauma histories, sensory sensitivities, and neurodiversity can all affect how the physique is felt and the way security is signalled. Which means any future sensory-based approaches should stay client-led, mild, non-obligatory, and grounded in consent.

Total, these findings invite cautious optimism. The proof is just not but sturdy sufficient to information scientific follow, however it encourages curiosity concerning the physique’s position in self-soothing. Beneath many repetitive behaviours might lie a physique attempting to manage itself; and the pores and skin, removed from being the enemy, might be a part of the answer.

Whereas additional analysis is required earlier than interventions focusing on interoception could be thought-about for skin-picking, these findings present meals for thought concerning the position of emotional regulation and physique consciousness inside follow.

Assertion of pursuits

Marta has lived expertise of Physique-Targeted Repetitive Behaviours and has co-authored analysis on this space. She can also be concerned in advocacy and psychoeducational work regarding BFRBs. No different conflicts of curiosity to declare.

Marta used AI help (OpenAI GPT-5) for structuring this weblog. All writing and reflections are her personal.

Edited by

Dr Nina Higson-Sweeney.

Hyperlinks

Main paper

Kłosowska, J., Żegleń, M., Badzińska, J., & Prochwicz, Ok. (2025). Interoception abnormalities and skin-picking dysfunction: Systematic evaluation and narrative synthesis of preliminary proof. Neuroscience & Biobehavioral Critiques, 106349. https://doi.org/10.1016/j.neubiorev.2025.106349

Different references

American Psychiatric Affiliation. (2013). Diagnostic and statistical guide of psychological problems (fifth ed.).

Isibor, M. (2025). Emotion regulation as a mediator of the affiliation between attachment safety and skin-picking dysfunction symptom severity. Attachment: New Instructions in Psychotherapy and Relational Psychoanalysis, 19(1), 54–69. https://doi.org/10.33212/att.v19n1.2025.54

Khalsa, S. S., Adolphs, R., Cameron, O. G., Davenport, P. W., Feinstein, J. S., Feusner, J. D., … Zucker, N. (2018). Interoception and psychological well being: A roadmap. Organic Psychiatry: Cognitive Neuroscience and Neuroimaging, 3(6), 501–513. https://doi.org/10.1016/j.bpsc.2017.12.004

Krahé, C., von Mohr, M., Gentsch, A., Man, L., Vari, C., Nolte, T., & Fotopoulou, A. (2018). Sensitivity to CT-optimal, affective contact depends upon grownup attachment type. Scientific Experiences, 8(1), 14544. https://doi.org/10.1038/s41598-018-32865-6

McGlone, F., Wessberg, J., & Olausson, H. (2014). Discriminative and affective contact: Sensing and feeling. Neuron, 82(4), 737–755. https://doi.org/10.1016/j.neuron.2014.05.001

Shen, T. (2024). A correlation examine of attachment and body-focused repetitive behaviour in non-treatment-seeking folks. Lecture Notes in Training Psychology and Public Media, 47. https://doi.org/10.54254/2753-7048/47/20240894

Snorrason, I., Belleau, E. L., & Woods, D. W. (2012). How associated are hair pulling dysfunction (trichotillomania) and pores and skin selecting dysfunction? A evaluation of proof for comorbidity, similarities and shared etiology. Medical Psychology Assessment, 32(7), 618-629. https://doi.org/10.1016/j.cpr.2012.05.008

Snorrason, Í., Smári, J., & Olafsson, R. P. (2010). Emotion regulation in pathological pores and skin selecting: Findings from a non-treatment searching for pattern. Journal of Habits Remedy and Experimental Psychiatry, 41(3), 238-245. https://doi.org/10.1016/j.jbtep.2010.01.009

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