The common causes of low skin temperature after tibial plateau comminuted fracture include lower limb venous thrombosis, nerve injury, catching cold and so on. 1. Lower extremity venous thrombosis: due to the tibial fracture can not go down to the ground for a period of time, the lower limbs lack of activities, the blood abnormally coagulation after blockage of veins, caused by lower extremity venous thrombosis, can appear in the lower extremity of the performance of the low skin temperature, can be accompanied by lower extremity swelling, pain and other symptoms. 2. Nerve damage: As the fracture occurs under the action of strong external force, it may be combined with nerve damage, and after nerve damage, there may be sensory abnormality, and the body feels cold, but the actual temperature is normal. 3. Catching cold: due to the weather change after not pay attention to keep warm, after catching cold, the body in order to maintain body temperature and contraction of blood vessels to reduce heat dissipation, can cause the lower limb temperature drop, which is a normal phenomenon. There are many reasons for lower limb coolness after tibial plateau comminuted fracture surgery, and it may also be related to hypothyroidism and other diseases. If the symptoms continue to be unrelieved, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.