Daily muscle throbbing in an irregular position may be caused by physiological factors such as excessive tension, or motor neuron lesions. 1. Physiological factors: If you are overstressed and overfatigued, it is easy for your muscles to jump in irregular positions every day. In addition, drinking strong tea, coffee, etc. may also cause this phenomenon. 2. Motor Neuron Disease: If your muscles are not in a fixed position every day, you need to be alert to the occurrence of motor neuron disease. It may be related to a variety of factors such as genetics, viral infections such as prions or human immunodeficiency virus, immune factors, and metal poisoning such as lead or mercury. There are many reasons for the daily muscle throbbing, so it is recommended to exclude physiological factors and then consult a doctor in time to avoid delaying the condition.