Disease analysis: Hello, triangular needle bloodletting is a treatment that will damage qi and blood. Non-professionals are not recommended to use this method by themselves. In addition, the triangular needle bloodletting is not water release. It may not work. Suggestion: Needles can be inserted in Yinlingquan, knees and eyes for varicose veins of lower limbs. This method is not suitable for people with satiety, hunger and neurasthenia. It will cause adverse reactions such as needle fainting. I wish you the best of health!