Scabies are parasites that infect the skin and cause really intense itching. Scabies are transferred by skin-to-skin contact and can occur anywhere on the body. This means that while scabies can be passed through sexual contact, it is usually passed through non-sexual skin-to-skin contact.
The test for scabies is a visual examination. Most of the time, a diagnosis can be made based on history of exposure to scabies or the presence of common symptoms like a rash and itching that gets worse at night. A health care provider might also take a scraping of this infected skin to examine under a microscope to look for mites, eggs, larvae or feces.
Diagnosis is difficult if symptoms are not present. If a person has scabies for the first time, it will usually take 2-6 weeks for symptoms to start to appear. For those who have had scabies before, symptoms can occur in as little as 24 hours.