I believe that most people born in the 1970s and 1980s have been troubled by lice. As long as one person in a family is "targeted" by lice, the whole family will suffer. Moreover, lice have strong mobility. Take head lice as an example. It will reproduce in large quantities on th

I believe that most people born in the 1970s and 1980s have been troubled by lice. As long as one person in a family is "targeted" by lice, the whole family will suffer. Moreover, lice have strong mobility. Take head lice as an example. It will reproduce in large quantities on the scalp, causing severe itching on the scalp. Even if you wash your hair every day, it cannot be removed. Unless you are bald, you can prevent its growth.

At that time, there was a special tool called " grate ", which was the same as the comb, but the tooth comb was denser. If you comb your hair, you would fall out too many lice. The lice that had already eaten became larger in size and could easily squeeze it with your fingers. As the quality of living standards improves, people's hygiene habits become better and better, and lice gradually disappear from the public's vision.

lice, grow in these two positions of the body

lice belongs to insects, has no wings, and is parasitic in different parts of the body. Its size is very small, just like sesame . The adult and full lice have a length of about 2 to 3 mm, and it has a gray-white round shape.

There are two common lice, mainly parasitizing on the scalp and perineum, and their body shapes also vary.

1, head lice

As the name suggests, head lice are parasitized on the scalp. They make a living by sucking the blood of the scalp, and intimate contact will be spread. Head lice will not affect the health of the body, but it will cause severe itching on the scalp; if you carefully observe the scalp, you will see point-like bleeding and scabs at the naked eye. If the hygiene conditions are poor, and the scalp is itchy and there are bleeding spots and scalp on the scalp, then it should be considered as head lice.

2, pubic lice

pubic lice is lice that grows in private places. The main transmission routes include couples' life, intimate contact, wearing underwear or pants together, sharing bathtubs and beds, etc. Most pubic lice are transmitted through intimate ways of getting along with each other by their partners.

pubic lice can bite the skin of the perineum, resulting in unspeakable itching, especially the itching at night. Scratching with your hands uncontrollably due to itching, causing scratching marks and spots on the long pubic hair, which may even induce folliculitis . In addition, if you look closely at the underwear, there will be a rust-colored powder on the underwear.

is also a lice, so why can't pubic lice survive on the hair?

1, pubic lice claws

After millions of years of evolution, lice have changed their size and claws in order to survive better.

Because the hair is thin, soft and thick, it can survive in dense hair, and the head lice is thin and long in shape; while the pubic hair is curly and thick, with large intervals between the hairs, so the pubic lice is wide and short in size to facilitate climbing and moving. (ps: Did you suddenly realize what high school biology said, " reproductive isolation ")

Put the pubic lice under a microscope to observe, and it can obviously find that the pubic lice's claws are thick and curved, which can tightly hook thick and short hair, but cannot grasp the thinner hair.

Also, pubic lice are wide and short in size, and it is particularly difficult to move in thick hair and cannot scratch the hair, so they cannot survive on the hair.

2. Pubic lice have strict requirements on the living environment

The reason why pubic lice cannot survive on the hair is mainly because its growth is very strict on the living environment. Relatively speaking, the hair is relatively thick and has a high density. The amount of hair in one square centimeter reaches about 600 pieces. However, the hair in the pubic bone and under the armpits is sparse, and the hair in the private parts is thick and curly. This environment is suitable for the body shape of pubic lice and claws.

Summary

No matter what kind of lice, if you want to solve them, you need to pay attention to cleaning and hygiene, wash your hair frequently, take a bath frequently, and change your close-fitting clothes frequently. After being infected with pubic lice, you need to find the source, receive treatment together, and create a lice-free family.

Although pubic hair can protect it, it must be removed after it grows, completely destroying its living environment and avoiding the growth of pubic lice. The removed pubic hair should be wrapped in toilet paper and burned to prevent the pubic lice from taking the opportunity to escape and cause trouble again.

Fit clothes, sheets, and bedding, etc., need to be boiled in water, or ironed with an iron, which can kill pubic lice to the greatest extent.At the same time, you should be clean and love yourself, and you should not have an unclean couple's life; try not to share bath towels or bathrobes with others, nor do you share bedding when staying in a hotel.

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