Left thigh numbness may be the early manifestation of lumbar disc herniation, lateral femoral dermatitis, acute cerebrovascular disease and other diseases.
1. Lumbar disc herniation: if the numbness of the left leg is persistent and related to activities or body position, it is considered that the patient may have lumbar disc herniation, and lumbar magnetic resonance examination is needed at this time.
2. Lateral femoral dermal neuritis: If the numbness of the left leg is localized, such as the numbness or discomfort of the left lateral thigh, the patient is considered to have lateral femoral dermal neuritis, and the symptom can be relieved after giving the nutritional nerve treatment such as vitamin B1 and B12 intramuscular injection.
3. Acute cerebrovascular disease: If the numbness of the left leg is persistently accompanied by the decrease of the strength of the left leg, or accompanied by the numbness of the left upper limb, fatigue, speech dysfunction, it is necessary to consider whether the patient has the manifestation of acute cerebrovascular disease, and it is possible to carry out the examination of the cranial magnetic resonance to make it clear.
The numbness of the left thigh needs to be taken seriously, and it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, to improve the relevant examinations, to clarify the specific causes of the disease, so as to systematically treat it.