What should I do if I meet a snake in the wild?

1, if you are far away from the snake, back off slowly, and don't make a loud noise, so as not to disturb other things and cause the snake to move.

If you are close to the snake, you'd better keep still. Under normal circumstances, snakes will not attack you actively. Then you can slowly move your backpack or coat to the front. If the snake changes, immediately put a backpack or clothes on it to cover the snake, then pick up a stone and hit the snake hard.

If you have no other tools, you must pick up a strong stick, so that when the snake attacks you, you can hit it with a stick. Don't say seven inches here, because it is difficult to find the snake in different positions, so you can hit the snake's abdomen. Its abdomen is very soft.

4. If you really don't have tools in your hand and the snake starts to chase you, then it's best to turn around in a strange way, especially in circles, because the snake's response to turning around is not as good as that of people, and it is difficult to catch up. If you are lucky, you can grab its tail and shake it hard when you get behind it. The snake is likely to die because of a spinal injury.

5. If you are accidentally bitten by a snake, you should immediately observe the wound bitten by a snake. If the wound is deep, swollen and numb, and even a little nauseous and dizzy, then it must have been bitten by a poisonous snake. Be sure to suck out the poisonous blood immediately, then tie it with a rope (shoelaces, belts or torn cloth) near the wound heart, and then try to go to the hospital immediately; If the wound is shallow, and there is only a little pain, no numbness, swelling and other abnormalities, then it is basically non-toxic. You should pay attention to cleaning the wound, then stop bleeding and bandage it, and then go to the hospital.

The difference between poisonous snakes and non-poisonous snakes is mainly based on the following points:

1, poison gland: Some poisonous snakes have poison glands, while non-poisonous snakes have no poison glands. Poisonous glands evolved from salivary glands. Located on both sides of the head and behind the eyes, it is enclosed in the muscles of the jaw and can secrete venom. When a poisonous snake bites something, the muscles around the poisonous gland contract, and the venom is injected into the bitten body through the venom tube and the fangs to poison it, but no poisonous snake has this function;

2. Venom tube: it is a pipeline for transporting venom, which is connected between poison glands and fangs. Only poisonous snakes are poisonous tubes;

3, fangs: poisonous snakes have fangs, located in front or behind the non-toxic teeth of the maxilla, longer and larger than the non-toxic teeth.

So, which non-poisonous snakes are easily confused with poisonous snakes?

Several kinds of non-poisonous snakes are often mistaken for poisonous snakes. Because of their special appearance, bright spots and fierce temperament, they are often regarded as poisonous snakes by some locals. In fact, this kind of snake is harmless to human body when it bites people.

Non-toxic yellow chain snake (also called Huang Chi chain) is easily confused with poisonous snake in appearance or color spots, and is often mistaken for golden ring snake because of black and yellow stripes on its back; Lycodon ruhstrati with black back, because of the black and white stripes on the snake's back, is also easily mistaken for a silver ring snake; The neck-edge snake (also called pseudo-viper) has a thick body, a short tail, a brown back, two rows of thick dark brown patches, and a slightly triangular head, which is very similar in appearance to the viper. Green snake (also called green bamboo label) is often confused with bamboo leaf green because it is green all over.

First aid method

1, when saving oneself, use rope, handkerchief, plant vine and cloth belt to bind the wound 5cm near the heart to prevent the toxin from spreading in the body. Zhong Songdai 1~2 minutes every 1 ~ 20 minutes to prevent limb ischemia and necrosis.

2. Look at the wound. A poisonous snake may bite a tooth in your flesh and pull it out.

3. Wash the wound repeatedly with well water, spring water, tea, tap water or 1:5000 potassium permanganate solution, and at the same time make several small "cross" incisions on the wound for detoxification. Then use cupping, breast pump and aspirator to suck out the poison. In case of emergency, suck out the venom from the wound with your mouth, and the emergency personnel will spit it out immediately after sucking it, and then rinse your mouth. This method is prohibited when emergency personnel have oral ulcers.

4. Burning: After being bitten by a snake, immediately burn the wound with 5~7 matchsticks to destroy local snake venom.

5, washing: snake venom will not spread in 1~3 minutes, then squeezing or washing snake venom can effectively eliminate most of the snake venom. Immediately rinse with hydrogen peroxide or 0. 1% potassium permanganate, salt water or cold boiled water, soap and urine. It is best to put the injured limb in 4~7℃ ice water (ice cubes in cold water) and put crushed ice around the wound for 24 hours. You can also spray chloroethane (keep warm when cooling). Remember: never rub alcohol on the wound.

6. Tie the limb: At the proximal end, tie the limb into a spiral shape like leggings with bandages to delay the spread of venom.

7. Expand wound and detoxify: After washing, cut the skin between the two tooth marks with a sterilized knife, and at the same time, cut a few rice-grain-sized places on the skin near the wound with a knife to let the venom flow out. Keep squeezing the wound for 20 minutes. But if you are bitten by Agkistrodon acutus (Agkistrodon acutus), Agkistrodon acutus and Agkistrodon acutus, don't stab to detoxify, because there is a hemolytic enzyme in their venom, which will cause a lot of bleeding. If you cut the wound again, it will only accelerate the blood loss. Because ordinary people can't distinguish poisonous snakes, the practice of wound incision to treat snake wounds can't be popularized.