Abstract
The comorbidities of lichen sclerosus (LS) are presumed but have not been analysed in detail. The purpose of this review was to identify evidence-based associated diseases in patients with LS and explore the potential need for sex-dependent screening protocols. A comprehensive search of the MEDLINE, Embase, and PsycINFO databases from inception to 29 February 2024 was conducted using the key search terms LS and all its synonyms. Pooled odds ratios and 95% confidence intervals of comorbidities were generated using the DerSimonian and Laird random-effects model. A total of 21 case-control studies met the inclusion criteria. Of the 75 comorbidities analysed, only 16 (21.3%) were studied in both sexes, revealing no contrasting associations based on sex. Both female and male LS patients showed significantly increased odds of common dermatological conditions (i.e., lichen planus, vitiligo, alopecia areata, atopic dermatitis, and psoriasis), various cardiovascular risk factors (i.e., essential hypertension, obesity, dyslipidaemia, diabetes mellitus, and diabetes mellitus type 2), genital warts, and hypothyroidism compared with controls. Overall, the scarcity of data currently does not support the implementation of sex-dependent screening strategies. The findings do, however, present significant associations with a range of potentially serious comorbidities, which warrants further elucidation and clinical vigilance.
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