Pregnancy hand numbness occurs mainly due to hormonal effects that cause cervical spondylosis. Normally, the estrogen-progesterone level in the body rises after pregnancy, causing the skeletal ligaments to relax in preparation for childbirth. When the cervical spine was not good before or when there was a slight cervical disc herniation, there were usually no symptoms, but after pregnancy it can cause the cervical disc to aggravate and produce nerve irritation symptoms such as pain and numbness in the upper limbs. Once produced, try to rest in bed and reduce local stimulation of the neck, such as head down, long hours of ambulatory work, playing with cell phones, etc. You can take oral methylcobalamin medication, which has no effect on pregnancy. Methylcobalamin is a vitamin B, which can eliminate the inflammatory response of nerve roots and reduce the symptoms of pain.