Tingling and swelling of the hands may be related to overwork, or it may be caused by cervical spondylosis, brain lesions and other reasons. 1. Overwork: If you have been engaged in manual work for a long time in the near future, resulting in excessive fatigue of the hands, it may cause numbness and swelling of the hands, which may also be accompanied by a feeling of weakness of the hands and other manifestations. 2. Cervical spondylosis: especially in patients with cervical disc herniation, the protruding cervical disc can easily lead to local nerve root compression, resulting in dysfunction of the compressed nerves, which may cause numbness and swelling of the hands, and may also be accompanied by headache, neck and shoulder pain, stiffness and other symptoms. 3. Brain lesions: commonly found in brain tumors, cerebral hemorrhage and other diseases, which can easily lead to local pressure on brain tissue, causing brain dysfunction, which may cause numbness and swelling of the hands, which may also be accompanied by dizziness, headache and so on. Numbness and swelling of the hands may also be related to other factors, if the symptoms continue to get no better, you should seek medical advice as soon as possible to diagnose the cause of the disease and give targeted treatment.