Why do you get sunburned when the weather is cold?

When the weather is cold, citizens are used to using hot water bottles, warm babies and other items to keep warm. These heating supplies are easy to carry and have a good heating effect, but if they are not used properly, they will easily lead to cryogenic burns. No, there is a high school girl in our city who got burned because of improper heating.

I woke up with two rows of blisters on my legs.

16-year-old Xiaoli (pseudonym) is a senior one student in a middle school in our city. A few days ago, the temperature plummeted, and Xiaoli, who was afraid of the cold, put the hot water bottle under the bed to keep warm.

Afraid of scalding herself, Xiaoli carefully wrapped a towel outside the hot water bottle. What she didn't expect was that when she woke up, she found a drainage bubble on the inside of her double strands. "I wrapped a towel and still burned myself." Xiaoli complained to the doctor Yan when she went to the dermatology department of the Municipal Women and Children's Hospital.

YanRongYun looked at Xiaoli's wound. Fortunately, this is only a first-degree burn. Just apply ointment. She reminded Xiaoli not to put the hot water bottle between the two strands when heating in the future, because heating in the same place for too long is likely to cause cryogenic burns.

How can low temperature burn people?

Yan told reporters that Xiao Li was the first case of low-temperature burn admitted to their dermatology department this year. Every winter, about 30% of patients are accidentally burned because of long-term use of "warm baby" or hot water bottle. Because the temperature of this kind of heating products is not very high, its danger is often easily overlooked.

How can low temperature burn people? How dangerous will the temperature reach? The answer is 45 degrees Celsius. This value may be similar to a glass of warm water. When the skin is exposed to a low-temperature heat source for a short time, it will blister the epidermis. However, if the skin has been exposed to a heat source higher than 45 degrees Celsius, heat energy will continue to accumulate, continue to conduct to the deep, and gradually develop into deep dermal and subcutaneous tissue burns.

It is understood that in general, the heating temperature of patch heaters exceeds 60 degrees Celsius, electric heaters exceed 70 degrees Celsius, and hot water bottles are generally above 75 degrees Celsius. They have exceeded the dangerous value.

In daily life, there are too many things that can cause low-temperature burns, even if we use moxibustion, it may also cause low-temperature burns.

Compared with other burns, low-temperature burns have smaller area and deeper depth. It may be a small blister at first, then it will fester, and some wounds can reach the bone directly. "Don't underestimate low temperature burns. The treatment is not difficult. Some people not only need surgery to remove necrotic tissue, but also leave scars afterwards. " Yan said.

Such people need special attention.

For elderly patients with diabetes and cerebrovascular diseases, low-temperature burns are more likely to occur. Because this kind of people are less sensitive to thermal stimulation, they are easy to burn at low temperature because of abnormal skin sensation; People who are drunk and tired will be slow to respond when using heating equipment; Children's skin is too delicate, especially infants can't express it, and cryogenic burns's accident is easy to happen.

In addition, women who use warm babies for a long time are also the "main force" of patients with low temperature burns. Many girls are afraid of the cold, so they stick warm babies on a certain part of the body for a long time, or even directly on the skin, which is easy to cause cryogenic burns.

In this regard, the doctor reminded the public that when using a warm baby, in addition to not being close to the body, it is necessary to change the body position; When choosing heating appliances, remember to control the distance and time of contact with the skin, and it is best to use appliances that support intelligent temperature control.