Does size or speed of a shot affect pain? a trial investigates

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria: * Informed consent obtained before any study-related activities. Study-related activities are any procedures that are carried out as part of the study, including activities to determine suitability for the study. * Healthy male or female participants as judged by the investigator. * Age 18-64 years (both inclusive) at the time of signing the informed consent. * Body Mass Index (BMI) greater than or equal to (\>=) 18.5 and less than or equal to (\<=) 30.0 kilograms per square metre (kg/m\^2) (both included). * White (Light skin that allows for adequate medical evaluation of any skin reactions). Exclusion criteria: * Known or suspected hypersensitivity to study intervention(s) or related products. * Previous randomisation in this study. * Previous rescreening for this study. * Pregnant or breastfeeding female participants. * Current participation (i.e., signed informed consent) in any other interventional clinical study. Treatment with an investigational medical product within 3 months or 5 half-lives (if known), whichever is longer prior to screening. * Any condition which in the investigator's opinion might jeopardise participant's safety or compliance with the protocol, including insufficient abdominal area for injection. * Intake of any medication that could influence pain perception or injection site reaction appearance (e.g., anti-coagulants, including low dose of aspirin, systemic antihistamines, pain-relieving, or anti-inflammatory medicinal products) within the last week before the intervention. * Intake of alcohol within the last 24 hours (self-reported) or a positive result of alcohol breath test prior to randomisation and intervention. * Intake of illicit drugs within the last 48 hours (self-reported) or a positive result of urine drug screening prior to screening. * Use of any nicotine products within the past month before screening. * Known active or inactive skin condition or disease, tattoos, or other interventions in the injection area that may affect pain perception or assessment of injection-site reactions. * Strenuous exercise within 3 days prior to the intervention.