IHS4 Tool
* The Treating Physician is responsible for reviewing and verifying the outcome generated by this Digital HS severity calculatorThorlacius, L., Ingram, J. R., Villumsen, B., Riis, P. T., Garg, A., Kirby, J., Christensen, K. R., & Jemec, G. B. E. (2018). Development and validation of the International Hidradenitis Suppurativa Severity Score System. British Journal of Dermatology, 179(1), 143–151. Link