In general, TI-RADS grade 2 cystic nodules in the right lobe of the thyroid gland do not cause numbness in the right little finger. Numbness of the right little finger should be considered to be physiological, such as sleep pressure on the right little finger, or other diseases, such as cervical spondylosis, peripheral neuropathy, and so on. 1. Physiological: For example, sleep pressure on the right little finger can lead to numbness of the right little finger, which usually improves after rest. 2. Cervical spondylosis: people who work for a long time at the desk are prone to cervical spondylosis, which presses on the nerve roots and can lead to numbness of the right little finger, which can be accompanied by pain in the neck and shoulder. 3. Peripheral neuropathy: long-term diabetes, long-term alcohol consumption can lead to peripheral neuropathy, causing nerve endings irritation, can lead to numbness of the right little finger. Numbness of the right little finger should go to the hospital, improve the examination to clarify the cause of the disease, according to the cause of the treatment.