Vulvar cancer cannot be detected through an HPV test, as the HPV test is a virological examination specifically designed to determine the presence of the human papillomavirus infection, but it cannot confirm the existence of vulvar cancer. Clinically, examinations for vulvar cancer primarily include a detailed physical examination to ascertain the presence of lumps, ulcers, or lesions on the vulva. Additionally, vulvar ultrasound, CT, or MRI can be performed to understand the extent of vulvar cancer invasion. A pathological examination of vulvar cancer can also be conducted to diagnose the disease.