Lice disease is a skin disease caused by lice, which occurs all over the world. Louse is a kind of louse disease, which can be transmitted through sexual contact, and is often shared by couples. It is popular in the United States and Western Europe in recent years. So, what is the cause of lice?
Lice can be divided into head lice, body lice or body lice, and pubic lice, which are parasitic on human hair, underwear, and pubic hair respectively. They all suck human blood and live, and release toxic saliva at the same time. Stings and venom can cause pruritic dermatitis, clothing lice infection can return to fever, epidemic typhus and trench fever, and pubic lice generally do not spread infectious diseases, but individual reports in some cases, Possibility of infection with typhus.
Compared with human head lice and human lice, the pubic lice are shorter in width and the female lice are 1.5 in length × 2.0 mm, male louse body length 0.8 × 1.2 mm, with three pairs of feet, long and thin front feet, and the other two pairs with hook shaped giant claws. There is no obvious boundary between the chest and abdomen. The abdomen is short and wide, slightly like a crab. It is usually used to hold the pubic and anal hair with giant claws, but rarely on the armpit, eyebrows or eyelashes.
Living environment (25%):
Generally, use a mouthpiece to grab the hair nearby to suck blood, and can also crawl on the skin like grayish yellow particles, generally limited to pubic hair or lower abdomen. The louse eggs lie obliquely on the pubic hair and are rust-colored or reddish particles, sometimes like punctate crusts, which are easily distinguished from the white head louse eggs.
The pubic lice are photophobic and photophobic, and can move around the day and night. When the temperature is too high or too low, both the female and male adults are still. They are fertilized within 24 hours after mating. The female begins to lay eggs. The pubic lice lay fewer and smaller eggs. Until 24-48 hours before their death, they lay about 3 eggs a day, about 50 eggs a day, and the adult lives for about 30 days. They die within 24 hours after leaving the host. The lice are incomplete metamorphosis. There are three stages in their life history: eggs, nymphs and adults, The whole life cycle is completed on the host. When the female lays eggs, it secretes glue to make the eggs firmly adhere to the hair or fabric fibers.
In real life, some people will suddenly find small black or red spots on their underwear. At this time, you should doubt whether you have lice, which is very harmful to patients. What harm can lice do to people?
Generally speaking, the common hazards of pubic lice include:
1、 Mental depression and psychosis. Because pubic lice disease is regarded as venereal disease treatment by major hospitals, the infection of pubic lice disease makes the patient nervous, afraid of being found by others, sneaky, mental depression, collapse and other symptoms, and when the symptoms are serious, schizophrenic, unable to extricate themselves. It is a common hazard of pubic lice.