Low temperature frostbite symptoms?

summary

Hypothermia refers to the state that the deep temperature of human body (rectum, esophagus, tympanic) is lower than 35 ℃. Hypothermia can directly or indirectly cause death. If the temperature drops below 32 ℃, human organs will not be able to metabolize and work normally. The causes of hypothermia include dysthermogenesis, such as hypothyroidism, and excessive heat dissipation, such as prolonged exposure to hypothermia. The old people can not raise their body temperature because of insufficient nutrition and heat, poor thermoregulation, insufficient heat preservation and diseases. Low temperature frostbite symptoms? Let's talk about it

Low temperature frostbite symptoms?

First degree frostbite: superficial skin frostbite. The local skin was initially pale, gradually turned blue purple, followed by swelling, itching, tingling and abnormal sensation, no blister formation. About one week later, the symptoms disappeared, the epidermis gradually fell off, and no scar was left after healing.

Second degree frostbite: full-thickness skin frostbite. Local skin is red, swollen, itchy and burning. Blisters can appear within 24-48 hours. If there is no secondary infection, the blisters will dry up and form black scab after 2-3 weeks. After falling off, the wound will be covered with new epithelium with incomplete keratosis. There may be persistent stiffness and pain in the local area, but no scar and spasm will be left.

Third degree frostbite: frostbite of the whole skin and subcutaneous tissue. The skin changes from pale to blue and then to black. Skin sensation disappeared, edema and blisters appeared in the tissue around frostbite, accompanied by severe pain and burning itching. The necrotic tissue has wound after falling off, which is easy to be infected. Healing is slow, leaving scars after healing, and can affect the function.

matters needing attention

In winter cold area must pay attention to antifreeze warm measures, go out the best to wear warm, gloves what a also don't fall, when necessary, stick warm baby with a hot water bag is OK, after knowing that he was frostbitten, to rub frostbite cream every day, until good, if there is ulceration, will go to the hospital to see.