Nerve block stovepipe is a new stovepipe technology in China in recent 1 ~ 2 years. This technology is mainly designed for calf muscle hypertrophy, especially when walking, which affects the appearance of calf. Muscles in the posterior leg can be divided into medial leg muscles and lateral leg muscles, including soleus muscles. Hypertrophy of medial calf muscles is the main reason for heavy legs. Nerve blocking stovepipe selectively blocks the nerves that control these muscles, so that the calf muscles atrophy to achieve the effect of stovepipe.