Injury caused when the flesh is pierced by the fangs of a snake; reptile bite. Most snakes are not poisonous, and their bites are not particularly dangerous. Although thousands of people are bitten by snakes each year, fewer than 10 percent die of their injuries. Poisonous snakes in the United States include rattlesnakes, copperheads, water moccasins, and coral snakes. In the United States, most poisonous snakebites involve rattlesnakes. Depending on the species of snake, the venom either destroys tissue and blood or causes neurological damage that leads to cardiac and respiratory arrest.
A puncture wound made by the fangs of a snake. All snakes should be considered poisonous, although only a few secrete enough venom to inoculate poison deeply into the tissues.
Annually, numerous individuals worldwide experience snake bites; however, the likelihood of fatality or severe harm subsequent to a bite is relatively low. The majority of bites are inflicted by nonvenomous snake species. Additionally, medical intervention for venomous bites tends to be successful, as long as the victim can be swiftly transported to a hospital. Even the most potent snake venom requires several hours or even days to cause the death of a human being.
Venomous snakes primarily inhabit tropical regions. The sole poisonous snake species native to the UK is the adder, belonging to the Viperidae family of vipers. Globally, this snake group encompasses lance-headed vipers, water moccasins (cottonmouths), and American rattlesnakes. The saw-scaled or carpet viper, indigenous to various areas in Africa, the Middle East, and the Indian subcontinent, is likely responsible for more human fatalities than any other snake species.
An additional category of venomous snakes falls under Elapidae, which comprises cobras, coral snakes, kraits, and mambas. Venomous bites can also result from various other snake types, such as Atractaspididae (burrowing asps), Hydrophiidae, and a relatively limited selection within the Colubridae family.
The consequences of a venomous bite are contingent upon the snake’s species and size, the quantity of venom delivered, as well as the age and overall health of the individual bitten.
A bite from a viper, such as a rattlesnake, is recognizable by the presence of two distinct puncture marks. Typically, an immediate sensation of burning pain and swelling occurs at the site, followed by feelings of dizziness and nausea. Subsequently, there is a drop in blood pressure and an increase in heart rate. Additional common symptoms include a pins-and-needles sensation, thirst, and headache. The venom might hinder blood clotting, leading to bleeding from the wound and the formation of bruises beneath the skin. Internal bleeding could also manifest from areas like the urinary tract, mouth, rectum, or vagina.
Elapidae snakes also create puncture wounds, and they might even chew the skin. Their venom predominantly targets the nervous system. Severe symptoms emerge between 10 minutes to eight hours following the bite, potentially encompassing drooping eyelids, slurred speech, and double vision. The affected person might experience drowsiness or delirium and could even suffer from convulsions. In the absence of proper treatment, respiratory paralysis will ultimately result in fatality.
Immediate medical assistance is essential for individuals bitten by snakes. Regardless of the snake’s venom, antibiotic medications and tetanus antitoxin injections are administered to prevent infections and tetanus. In the case of venomous bites, antivenom is injected. Antivenom is a serum containing antibodies against the venom. With timely intervention, the majority of snakebite victims achieve full recovery.