How is frostbite classified? How is frostbite graded?

The cause of frostbite is caused by the end of the body's circulatory system, such as fingers, toes, ears, nose, etc., due to prolonged exposure to cold or harsh climates, or exposure to ice and snow, resulting in ** or subcutaneous tissue freezing injury. Symptoms of frostbite include: stinging pain in the affected area and gradual or tingling, feeling stiff and pale or with blue spots, difficulty moving the affected area or dullness.

In the early stage, it is ** or deep frostbite, which is difficult to distinguish, and its symptoms are not much different. In addition, frostbite may be associated with hypothermia, the latter of which should be treated first in first aid. If frostbite is the only symptom, the affected area should be warmed slowly to prevent further damage to the deep tissues.

Move the patient to a warm tent or mountain hut as soon as possible, gently take off the clothes and any restraints on the wound, such as rings, watches, etc., and use the heat transfer method to warm the affected area, or immerse the affected area with warm water. If the affected area has regained blood color and sensation within 1 hour, the first aid action of [warming] can be stopped. Second, elevate the affected area to reduce swelling and pain.

Wrap or lightly cover the affected area with a gauze triangle or soft clothing. Unless necessary, take care not to rub or massage the affected area, and not to radiate heat to warm the affected area. The affected area after warming should not be exposed to the cold again, and it is not necessary to walk on "thawed" feet.

It must not be soaked in hot water immediately, which will only aggravate the condition, and it is not possible to apply the ointment immediately, otherwise it will cause very serious damage to the body, and it should be treated slowly according to the steps.

First of all, don't use hot water compresses after frostbite, and according to different degrees of frostbite, use different methods, if the degree is deeper, it is very likely to sudden death, and it cannot be carried out by baking fire or rubbing with snow.

The misconception is that if there is local chilblains, immediately use a hot towel, which is very incorrect, and it will aggravate the pain of chilblains, or some people will use soy sauce and salt water to clean, which is also very wrong, and it will also infect bacteria.

Frostbite is a lesion caused by the impaired local blood circulation after the surface of the body is damaged by low temperature, which is generally divided into local frostbite and generalized frostbite. Frostbite mostly occurs on fingers, toes, earlobes, noses, etc., and appears red, itchy, red and swollen. The lesion is superficial, producing reddish-purple spots, local itching, stinging, and paresthesia for frostbite; If the injury reaches the deep level, the local redness and swelling are more obvious, blisters appear, and the serum or bloody fluid is inside, and the pain is more severe, but the person with dull sensation is frostbite.

If there are chills, cold, whitish, cyanotic limbs, followed by numbness, weakness of limbs, fatigue, sluggishness, confusion, coma, arrhythmia, shock, and freezing, it is generalized frostbite.

The principle of frostbite should be the combination of traditional Chinese and Western medicine to prevent or reduce disability and preserve the function of viable tissues and affected limbs to the greatest extent.

When winter comes, some people get frostbite because of the cold and wet weather. After being frostbitten, the following symptoms generally appear, such as redness, swelling and congestion in the frozen area**, or edema, severe pain, etc.

1. Symptoms of first-degree frostbite. The first degree of frostbite is mild, and the common "frostbite" is a degree of frostbite, and the place where the frostbite is damaged is on the surface of the first degree, and the frostbitten part will show symptoms of redness, swelling and congestion, and the person who is frostbitten will also feel fever.

Itchy, burning, painful. These symptoms will generally disappear after a few days, and after the frost is cured, except for some peeling on the surface of **, there will generally be no scarring.

Second, second-degree frostbite symptoms. Second-degree frostbite hurts the superficial dermis, and after frostbite, in addition to the symptoms of redness and swelling, there will also be blisters in the market.

Bloody fluid can be seen in the blisters, ** there will be symptoms of edema, there will be severe pain, and ** the feeling will be relatively dull, not much sensation.

3. Symptoms of third-degree frostbite. Third-degree frostbite will hurt the whole thickness of the **, so ** will appear black or purple-brown color, and the very severe pain of frostbite will also be lost, that is, I don't know the pain. This kind of frostbite is very serious, even if it is not easy to scar after the injury, it is easy to leave scars, and there will be long-term allergies or pain.

Fourth, fourth-degree frostbite symptoms. Fourth-degree frostbite injures ** as well as subcutaneous tissues.

Or the muscles and even the bones can be frostbitten, which can lead to necrosis, loss of sensation, and scarring even if healed.

Exist. Therefore, the problem of frostbite should not be underestimated, and it should be carried out when it is found that it is frostbitten, such as quickly getting out of the cold environment to prevent continued freezing, or going to a place with a relatively high room temperature, or applying some frostbite cream, or taking some blood circulation and stasis.

and other drugs, etc.

Generally, frostbite includes: first-degree frostbite is **superficial frostbite, second-degree frostbite is full-thickness frostbite, third-degree frostbite is **and subcutaneous tissue is frostbite, fourth-degree frostbite is **, subcutaneous tissues, muscles or bones are frostbitten.

First-degree frostbite is the lightest, that is, the common "chilblains", damaged in the epidermal layer, the frozen part is red, swollen and congested, and the symptoms disappear after a few days, except for the epidermis shedding, there is no scar. Second-degree frostbite and superficial dermis, in addition to redness and swelling after injury, accompanied by blisters, the blisters can be bloody fluid, deep edema, severe pain, ** dullness.

Third-degree frostbite injury and ** full-thickness injury, black or purple-brown, loss of pain. The injury does not heal easily, and in addition to scarring, there may be long-term hyperesthesia or pain.

Fourth-degree frostbite injures **, subcutaneous tissues, muscles, and even bones, necrosis, loss of sensation, and scarring after healing.