The lack of strength to grip the hand may be caused by innervating nerve damage, cerebrovascular disease, neurological disease or systemic basic metabolic disease.
1. Damage to the innervating nerve: no strength to clench the fist, hand strength is impaired, mainly the muscles and nerves that innervate the flexion of the fingers are compressed, cervical disc herniation compression of the nerve root, which can be accompanied by numbness of the fingers, forearm muscle atrophy. The median nerve is compressed, pain sensation, numbness and weakness of the palm of the hand, with the thumb and index finger as the typical performance, but the little finger and ring finger are normal.
2. Acute cerebrovascular disease: the sudden appearance of one hand can not hold, no strength, consider acute cerebrovascular disease, such as transient ischemic attack, cerebral hemorrhage and other diseases. Attention should be paid to whether the patient is accompanied by numbness of the limbs, crooked mouth, and clumsy speech at the same time.
3. Neurological diseases: some neuromuscular diseases, demyelinating diseases or motor neuron disease often appear on one side or both sides of the hand, most of the onset of insidious, there are cases of acute onset of the disease, the disease will be accompanied by muscle atrophy, which is relatively rare.
4. Systemic diseases: poisoning and low potassium, hypoglycemia, etc. can also cause different degrees of weakness, often accompanied by some palpitations, sweating and other systemic symptoms.
The lack of strength in hand grip may also be caused by intracranial tumors, psychological factors and other diseases, after excluding physiological factors, it is recommended that patients go to regular hospitals in time for comprehensive analysis, judgment, and clear reasons for treatment.