In the life, the hand washing germs often flow with the water.新闻
In the life, the hand washing germs often flow with the water.
We know that pathogenic microorganisms are discharged from the source of infection, and most of them depend on some mediation and transfer of the external environment, so that they may invade a certain part of the human body and “settle down”.
In our daily lives, our hands have the most exposure to various items, so the hand is considered the most direct medium of transmission for pathogenic microorganisms.
For example, in a family or dormitory, a person with a cold can spread the cold pathogen through his nose and hand to the object he touched, and these cold pathogens can survive on these objects, if others accidentally come acrossThese objects, then rub your nose or rub your eyes, so that he may also be infected.
A study shows that people have to touch their nose, eyes, mouth and other parts at least 3 times in an hour.
Some common diseases such as facial skin infections, colds, bacterial infections in the body, etc., are likely to spread by hand-to-mouth.
Therefore, after taking a meal, after washing the infected patient or touching the pet, washing the hands is a necessary “processing”.
According to statistics, human skin has an average of about 10,000 microbes per square centimeter, especially on the folds of the skin and on the fingertips.
The bacteria on the skin of the hand, in addition to the surface of the skin, are also present in the sweat glands, hair follicles, and sebaceous glands of the skin. Depending on the depth of the parasite, the bacteria on the skin are usually divided into two categories: one is temporary bacteria, and the other is temporary bacteria.One type is resident bacteria.
Temporary bacteria are located on the surface of the skin and are retained on the skin when the skin comes into contact with other objects. The number and type of certain bacteria vary, and the number of times each person contacts the item, the degree of contamination is closely related to the opponent’s cleaning habits.
Some of the temporary bacteria are pathogenic bacteria, mainly Escherichia coli and Staphylococcus. These bacteria usually last less than 24 hours on the skin and can be removed when washing hands with soap.
The type and quantity of resident bacteria are relatively constant. Most of the bacteria are non-pathogenic bacteria, which can survive and multiply on the skin for a long time. Because they are often deep in the skin, they are generally difficult to remove with soap scrubbing.
Temporary bacteria and resident bacteria can transform each other. If the skin of the hand is not cleaned for a long time, the temporary bacteria will enter the hair follicles, sweat glands, sebaceous glands, and become resident bacteria.
In particular, people who regularly pay attention to cleansing the skin of the hand have fewer bacteria on the skin of the hand than those who do not pay attention.
The value of hand washing is to effectively reduce or eliminate bacteria.
The cleaning and disinfection of the skin of the hand is usually done by mechanical cleaning and chemical disinfection.
Mechanical cleaning refers to running water and soap washing.
Practice has proved that this method is the most effective, generally 60%-90% of the skin keratinized epithelium is removed. If combined with brushing, the microbial clearance rate can reach 90%-98%.
Although this method does not remove all of the temporary bacteria in the hand, it can reduce the number of bacteria below the amount required for infection.
In order to ensure the effect, you must pay attention to: 1 wash your hands for at least 1 minute, do not miss fingertips, thumb, finger joints and other parts that are often difficult to wash when washing hands; 2 rinse with running water, do not use public washbasin; 3 best use pedalThe faucet of the switch should not be connected to the faucet with gauze or other materials to prevent it from becoming a “storage place” for bacteria; 4 After washing hands, it should be naturally dried or dried with a disposable paper towel.
It has been reported that after washing hands with a public towel, the number of bacteria on the hand can be increased by more than 10 times.
Disinfecting and washing hands refers to the further removal of microorganisms remaining on the skin on the basis of general hand washing.
This method is mainly used to contact patients with infectious diseases and their items.
It is the easiest and quickest way to disinfect your hands with 75% alcohol for 1 minute.
In addition, you can use 0.
2% aqueous peracetic acid solution 0.
1% Xin Jie Er, 3% iodophor and other disinfectants, generally 2-3 ml.
It is more effective to keep the skin moist for a predetermined period of time after scrubbing.
Washing your hands and preventing diseases, is it better and better?
There must be another person who talks about “health”. They are always particularly afraid of dirty, washing their hands repeatedly, and being restless all day long. They are afraid of contaminating bacteria with their hands. Some people call it “cleanliness”.
In fact, this is not about hygiene, but the manifestation of obsessive-compulsive disorder, that is, compulsive repetition of some repeated behaviors, such as repeated hand washing, repeated examinations, etc., is a kind of psychological disorder, should go to see a psychiatrist as soon as possible, receive psychotherapy andmedical treatement.