Left leg pain, swelling, numbness and fever, may be due to rheumatic immune diseases, lumbar spine lesions, local nerve injury, cerebrovascular disease and other causes.
1. Rheumatic immune diseases: easily involved in multiple joints of the body, which may cause pain, swelling, numbness and fever in the left leg, such as rheumatoid arthritis, polymyositis, systemic lupus erythematosus and so on.
2. Lumbar spine lesions: commonly seen in lumbar disc herniation, lumbar spinal stenosis and other diseases, which can easily lead to the patient’s sciatic nerve compression, resulting in dysfunction of the area innervated by the nerve, it may show the whole left leg pain, swelling, numbness, and also fever, and may be accompanied by lumbar pain, numbness of the feet and other symptoms.
3. Local nerve injury: due to trauma, exposure to chemicals and other reasons lead to local nerve injury, can also appear throughout the left leg pain, swelling, numbness and fever.
4. Cerebrovascular disease: cerebral infarction or hemorrhage can lead to left leg pain, swelling, numbness and fever, cranial CT or MRI can confirm the diagnosis.
The whole left leg pain, swelling and numbness and fever, may also be caused by other reasons, if the symptoms continue to be unable to alleviate, should seek medical advice as soon as possible, after diagnosis of the cause, by the doctor’s guidance for treatment.