Min needle is a common type of acupuncture needle. Its handle is stainless steel with a length of 10cm. The needle body is made of molybdenum metal with a length of 4cm and a diameter of 0.3cm. The molybdenum needle body is partially embedded in the stainless steel handle with beautiful appearance and easy use. The end of the needle body extends into a 0.5cm long arrow shaped sharp needle.

The needle is used in the selected part by the cutting method. First, the cutting part and the needle are disinfected, and then the operation is performed on different parts (acupoints) and reaction points with its sharp blade. The needle body is held in pen type with thumb, food and middle fingers to cut the skin, with micro bleeding as the degree. Cutting direction: follow the trend of meridians, and the length of scratch should be 1cm.

The needle is mainly used for the treatment of external diseases and pus discharge, such as external wind evil, apoplexy, crooked mouth, a variety of gastrointestinal diseases with white spots or purple spots on the buccal mucosa in the mouth, as well as eczema, pustules and other diseases in skin diseases.

In addition, we should also know that this kind of needle is also known as arrow needle. See "Lingshu · nine needles and twelve principles": "one day, the needle is one inch and six minutes long,... The head is big and the end is sharp to relieve Yang Qi." it is mainly used for shallow pricking skin bleeding, treating head and body fever, etc. "Lingshu official needle": "if the disease is in the impermanent place of the skin, take the needle at the place of the disease, and don't take the white skin." on this basis, it developed into a skin needle in modern times.