The etiology of skin vasoconstriction in a reticulated pattern is generally considered to be twofold: dermatological diseases and electric shock injuries. In medicine, dermatoses are diseases concerning the skin, which are one of the common and prevalent diseases that seriously affect people’s health, such as leprosy, scabies, fungal diseases, and bacterial skin infections. Dermatological diseases are the changes in the morphology, structure and function of the skin (including hair and nails) after being affected by internal and external factors, producing pathological processes and various clinical sequential manifestations accordingly. The incidence of skin diseases is very high, mostly mild and often does not affect health, but a few more serious and even life-threatening. Electric shock injury (electrical ingury) commonly known as electrocution, usually refers to the human body directly touching the power or high voltage electricity through the air or other conductive medium transmission of current through the body caused by tissue damage and dysfunction, serious cases of cardiac and respiratory arrest. More than 1000V (volts) of high-voltage electricity can also cause burns. Lightning injury (lightning strike) belongs to the category of high-voltage electrical injury. The human body as a conductor of electricity, in contact with the current, that becomes part of the circuit. The severity of damage to the human body and voltage, current strength, DC and AC, frequency, energizing time, contact parts, the direction of the current and the environmental weather conditions are closely related, which has a greater relationship with the voltage. Voltage 40V that there is a risk of tissue damage, 220V can cause ventricular fiber fibrillation, 1000V can make the respiratory center paralysis. Current can depolarize muscle cell membranes, 10-20mA (milliampere) has been able to make muscle contraction, 50-60mA can cause ventricular fiber fibrillation. Alternating current can cause continuous muscle convulsions, can be power “hold”, so that the electrocution can not break free from the power. Low-frequency alternating current is more harmful than high frequency, especially when the frequency per second in 50-60Hz (Hz), easy to induce ventricular fibrillation. Therefore, the harm of alternating current is greater than direct current. The resistance of different tissues under different conditions is also different.