Interflexor twitching refers to abnormal activity on the little finger side of the hand, which may be related to calcium deficiency, epilepsy, cold, and so on. 1. Calcium deficiency: Long-term poor dietary habits, excessive partiality, picky eating, resulting in lack of nutrients in the body, especially when calcium deficiency, resulting in low blood calcium levels, which can easily lead to muscle spasms, may cause cramping symptoms, which can be manifested as twitching of the hand. 2. Epilepsy: partial seizures can be characterized by involuntary twitching of a part or one side of the limb, which can generally be diagnosed with the help of electroencephalography (EEG). 3. Cold: If the hand stays in a cold environment for a long time, resulting in cold stimulation of the local muscles, it is easy to cause spasmodic contraction of the local muscles, which may cause cramping symptoms. Avoid unauthorized use of medication when small fish intermittent convulsions, should first go to the hospital for examination, under the guidance of professional physicians to analyze the cause and then symptomatic treatment.