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Snakebite

life science Maturity 11-13 Next article →

A snakebite is an injury caused by a snake's teeth.

Snake bite symptoms
Snake bite symptoms

While many snakes are not dangerous, venomous snakes use a special liquid called venom to hunt or protect themselves. When a venomous snake bites, it often leaves two small puncture wounds from its fangs.

Snake Venom Delivery System Diagram
Snake Venom Delivery System Diagram

The venom can cause many different problems in the body. Some people feel a lot of pain, redness, or swelling at the bite site. Others might feel sick with vomiting, blurred vision, or a racing heart. Because the venom changes depending on the snake, the symptoms can be very different for every person.

How the venom works depends on the type of snake. Some venom attacks the nervous system, which is the body's way of sending signals. This can make it hard for a person to breathe or speak. Other types of venom cause necrosis, which means the skin or muscle tissue begins to die.

Tissue necrosis following bite from Bothrops asper PLoS Medicine
Tissue necrosis following bite from Bothrops asper PLoS Medicine

Some venoms can even cause a person to bleed from their nose or mouth. In some cases, the venom can cause the kidneys to stop working properly. The way the body reacts depends on the amount of venom and the person's health.

Scientists and health groups have studied snakebites for a long time. The World Health Organization (WHO) calls snakebites a "neglected public health issue" in many tropical countries. In 2017, the WHO even named snakebite envenomation as a Neglected Tropical Disease. This helps encourage more research and better medicine for people who need it. Doctors work hard to make antivenom, which is a medicine that fights the venom.

Benczur-kleopatra
Benczur-kleopatra

Finding the right antivenom can be a hard job if the type of snake is unknown.

There are many important facts about how often these bites happen. The WHO estimates that between 4.5 and 5.4 million people are bitten every year. Of those people, about 40% to 50% get sick from the venom. Between 80,000 and 130,000 people die from snakebites each year. Most bites happen in Africa, Asia, and Latin America, especially in rural areas. In the United States, about 7,000 to 8,000 people are bitten by venomous snakes annually.

RodriguezParkHoustonSnakes
RodriguezParkHoustonSnakes

Understanding snakebites helps us stay safe in the outdoors. Most bites happen on the hands, arms, or legs when people are working or playing. To stay safe, it is best to avoid handling snakes and to wear protective shoes. If a bite occurs, you should wash the wound with soap and water. It is important to keep the bitten limb very still. You should never try to suck out the venom or cut the wound. These simple steps can help a person while they wait for medical help.

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🖼️ Images & Media (7)
File:Snake bite symptoms.png
Snake bite symptoms.png
File:Tissue necrosis following bite from Bothrops asper PLoS Medicine.jpg
Tissue necrosis following bite from...
File:RodriguezParkHoustonSnakes.JPG
RodriguezParkHoustonSnakes.JPG
File:Bundesarchiv Bild 135-KA-01-019, Tibetexpedition, Melken einer Schlange.jpg
Bundesarchiv Bild 135-KA-01-019,...
File:Snakebite kit.jpg
Snakebite kit.jpg
File:Snake Venom Delivery System Diagram.jpg
Snake Venom Delivery System Diagram.jpg
File:Benczur-kleopatra.jpg
Benczur-kleopatra.jpg
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