What causes sudden convulsions during sleep?
Disease description:
My child is now 15 years old. While sleeping at night, he always experiences involuntary twitches or jerks, but there are no other symptoms. I would like to ask what might be causing this?
Doctor's answer (1)
Dr. Lv Zhiqin
Sudden convulsions occurring during sleep, commonly referred to as "nocturnal myoclonus" or "hypnic jerks," may be caused by the following factors:
1. Physiological factors: Excessive fatigue, exposure to cold, and significant mental stress may cause muscles to remain in an excited state during sleep, leading to convulsions. Moreover, hypnagogic jerks are common physiological phenomena characterized by involuntary muscle twitches occurring during the transition to sleep or upon waking.
2. Hypocalcemia: A deficiency of calcium ions in the body can increase neuromuscular excitability, making hand and foot convulsions more likely to occur during sleep. This condition commonly occurs in adolescents, pregnant women, and elderly individuals who either require higher calcium intake or experience greater calcium loss.
3. Epilepsy: Epilepsy is a neurological disorder characterized by excessive neuronal discharge in the brain, leading to sudden or transient abnormalities in the central nervous system. Epileptic patients are prone to seizures during sleep, manifesting as limb convulsions and loss of consciousness.
4. Restless legs syndrome: This is a sensorimotor neurological disorder primarily characterized by indescribable abnormal sensations and discomfort in both lower limbs during sleep or periods of rest. Patients experience a strong urge to move their legs and often involuntarily tap or move their lower limbs to alleviate discomfort.
5. Other factors: Conditions such as brain disorders, metabolic diseases, infections, and medication effects may also lead to convulsions during sleep.
If symptoms persist or worsen, timely medical consultation is advised.
