The symptoms of cramps in the big toe at night are commonly caused by the following: first, excessive load on the lower limbs during the day, including strenuous exercise or high workloads are likely to lead to a relative accumulation of metabolites in the lower limb muscles, muscle strain injury and local congestion, edema, inflammatory reactions, resulting in muscle dysfunction and corresponding cramping symptoms at night when resting, especially in the calf muscles. Secondly, it can be seen in calcium deficiency. Calcium ion is an important ion for muscle function, and muscle function can be disturbed when there is calcium deficiency, leading to the symptoms of big toe cramps. Third, nerve diseases, including lumbar disc herniation, lumbar spondylolisthesis around the neuritis, due to nerve abnormalities resulting in muscle dysfunction, resulting in cramps in the big toe. If the cramping symptoms occur frequently, you must go to the hospital for examination. If it is occasional, after corresponding rest and observation, the symptoms are not obvious, you can usually pay attention to reduce the daily workload, pay attention to rest, eat a balanced and adequate diet, sleep early and wake up early to avoid the recurrence of symptoms.