How to check and diagnose pubic lice disease? What diseases do pubic lice disease need to be distinguished from

In daily life, people should pay attention to understanding the emergence of sexual diseases. The harm of pubic lice is many, and people should pay attention to understanding the treatment methods. In daily life, people should pay attention to the inspection items. What are the common methods for checking pubic lice? Below, we will talk about common methods for checking pubic lice.

Generally, common methods for detecting pubic lice include:

Patients can self test, and this disease has three characteristics: first itching, second rash, and third cyanosis. Usually, there is no need for laboratory examination. If necessary, adult pubic lice or insect eggs can be detected under a microscope or magnifying glass for identification.

Specimen collection: Use scissors to cut off pubic hair with pubic lice and insect eggs

Specimen fixation of pubic lice disease: Select the following fixation solution for fixation: 70% alcohol or 5% -10% formalin solution. Place the fixed specimen on a glass slide, drop a drop of 10% potassium hydroxide solution, heat it slightly on an alcohol lamp, and observe under a microscope. This is an important method for detecting pubic lice.

Inspection phenomenon of pubic lice: The pubic lice are crab shaped and have three pairs of feet. The front feet are small, and the middle and back feet are huge. They have thick claws that can grasp the pubic hair. The insect eggs are rust colored or light red. Due to its small range of activity, pubic lice often cling tightly to the skin or attach to the pubic hair without moving, causing severe itching when biting the skin. Scratching can cause epidermal erosion, scratches, blood scabs or folliculitis, and secondary damage. Some patients may develop green spots, with a diameter of about 0.5cm, which are grayish blue in color and do not itch. Finger pressure does not fade, and it is common in the inner thigh and abdomen. It may be due to the saliva of the pubic lice entering the skin when sucking blood, causing the hemoglobin in this area to change color and become green spots, which can last for several months.

Pudendal lice disease needs to be distinguished from the following diseases:

(1) Scabies infection: Scabies is a highly contagious parasite that cannot be seen with the naked eye and is classified as a sexually transmitted disease. For example, objects that patients have come into contact with may be infected by contact. Scabies like to move at night and have obvious itching at night.

(2) Trichomonas infection: Trichomonas is a very small flagellated protozoan organism that cannot be seen with the naked eye and must be observed under a microscope. It is usually caused by sexual contact and only occurs in the genitourinary system, mainly in the vagina, urethra, and prostate. Most men infected with Trichomonas vaginalis have no symptoms, but most women have symptoms, manifested as foul smelling yellow green secretions of the vagina and symptoms of external genital irritation,