To determine if it is scabies by the following aspects: 1. is laboratory examination, you can take the tunnel of scabies, or small papules, and then observe whether there is the presence of scabies. 2. can ask friends, relatives and close contacts around the patient, whether they also suffer from the infection caused by scabies. 3. by the specific characteristics of the rash, between the fingers, around the umbilicus, can appear tiny papules and tunnels, and in the vulva The part, and around the anus can appear large nodules with a hard texture. If the above-mentioned situation occurs and is accompanied by intense itching at night and slightly reduced during the day, the diagnosis is basically confirmed as scabies.