Frostbite

Introduction Frostbite is a localized inflammatory damage caused by cold. Frostbite is a common disease in winter. According to relevant statistics, 200 million people in China suffer from frostbite every year, mainly children, women and the elderly. Once frostbite occurs, it is often difficult to cure quickly in the cold season. It will not heal until the weather turns warm. To reduce the occurrence of frostbite, the key is to prevent it before winter.

Cause

An abnormal reaction of the body to the cold. Frostbite is a localized inflammatory lesion caused by cold during the winter or early spring. It occurs at the distal ends of the limbs and exposed areas such as the hands, feet, nose, ears, earlobes and cheeks. Modern medicine believes that frostbite is caused by poor cold tolerance of the skin of the patient, and cold invasion causes the skin of the distal skin to contract or sputum, leading to local blood circulation disorder, resulting in tissue damage caused by oxygen and nutrient deficiency. Chinese medicine believes that the occurrence of this disease is due to the lack of yang in the patient, the feeling of cold and dampness, making the blood run poorly, and the blood stasis is blocked.

an examination

I degree frostbite: injury to the epidermis. Local redness, swelling, itching, pain, heat, after about 1 week, the idiot is getting better.

II degree frostbite: injury to the dermis layer. Red, swollen, painful, itchy, obvious, local blisters, no infection after 2 to 3 weeks of healing.

III degree frostbite: deep subcutaneous tissue. Early redness and large blisters, the skin turned from pale to blue-black, the perception disappeared, and the tissue showed dry necrosis.

Grade IV frostbite: Injuries to muscles and bones. Dry and wet gangrene occurs, requiring skin grafting and amputation.

Differential diagnosis

Typical lesions of frostbite are limited by the size of the broad bean, dark purple red edema edema or induration. The health search is unclear, the edges are bright red, the center is blue-purple, the surface is bright and shiny, and it is easy to be confused with polymorphic erythema. Polymorphic erythema is also common in the back of the hand, fingertips, etc., but the damage is polymorphic, and there are typical iridescent erythema, also known as target damage net, middle purple, reddish edge, no blood congestion, health search, After the acute, more common in the spring and autumn two seasons.

It is not difficult to make a diagnosis based on its clinical manifestations and general health search in winter.

TCM pathogenesis and syndrome differentiation: Chinese medicine believes that this disease is not yang, relapse of cold invasion, poor blood flow, meridian barrier, blood stasis of the skin.

TCM syndrome differentiation: yang deficiency, cold invasion, qi and blood stagnation health search.

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