Common causes of cramps while sleeping include calcium deficiency, excessive fatigue, cold feet, ankle-tube syndrome, and lumbar disc herniation.
1. Calcium deficiency: when there is a lack of calcium in the body, it will cause increased muscle excitability and easy muscle spasms, which will lead to cramps in the feet while sleeping.
2. Excessive fatigue: when doing strenuous exercise, or excessive foot fatigue, resulting in the accumulation of lactic acid within the muscle, which is prone to the phenomenon of foot cramps at night when sleeping.
3. Cold feet: If you do not keep your feet warm while you sleep, your feet will get cold and your blood circulation will be poor, which may lead to cramps in your feet while you sleep.
4. Ankle canal syndrome: The posterior tibial nerve is compressed in the ankle canal due to various reasons, which may cause numbness and spasm in the feet, or what we call foot cramps.
5. Lumbar disc herniation: Lumbar disc herniation compresses the nerve roots innervating the lower limbs, which may cause radiating pain and numbness in the lower limbs, and there may be sensory disorders, numbness and cramps in the feet.
There are many cases of foot cramps during sleep, such as lower extremity vascular disease or lower extremity pressure during sleep, etc., you can appropriate rest and warmth, if not alleviated should be timely to the hospital, improve the relevant examination, clear cause of the targeted treatment in accordance with the medical advice, so as not to delay the condition.