Objectives: To analyse changes in health care activity, time of referral and diagnosis intervals and the incidence of cancer during the first two years of the SARS-CoV-2 pandemic in a quick diagnosis unit., Materials and Methods: A retrospective observational study was carried out during the prepandemic year (March 1, 2019, to February 29, 2020) and the first two years of the pandemic (March 1, 2020, to February 28, 2022). Demographic and clinical variables, the first visit interval, the diagnosis interval and the first visit-diagnosis interval were evaluated and compared., Results: During the first pandemic wave, there was a reduction in referrals (-32.6%), which then increased 8.1% and 17.7% from the second wave until the end of the first pandemic year and the second pandemic year, respectively. An increase in referrals to primary care and a decrease in emergencies were identified. The increase in cancer diagnoses of 2.7% and 15.7% in the two years of the pandemic was proportional to the increase in referrals. No changes were observed in benign processes or in cancer locations and stages. The first visit interval was higher for benign diseases (p<0.0001). A prolongation of the diagnosis interval was observed in cancer patients, although during the three years of the study the median was <15 days., Conclusions: The impact of the pandemic affected the length of intervals and the origins of referrals. The quick diagnosis units constitutes and urgent complementary cancer diagnostic route with a high diagnosis yield., (Copyright © 2023 Elsevier España, S.L.U. and Sociedad Española de Medicina Interna (SEMI). All rights reserved.)