Botox injection sites are gastrocnemius injection (slim calves), oblique muscle injection (slim shoulders), deltoid injection (slim arms). The formal is botulinum toxin injection, the domestic through the approval of only two commodities: Lanzhou Hengli and the United States of BOTOX. What is the principle of “leg slimming injection”? Botulinum toxin by blocking the release of motor nerve endings acetylcholine, to achieve the effect of muscle relaxation, the gastrocnemius muscle will be in a long period of partial disuse atrophy thinning, so as to achieve the effect of thin legs. Will walking and running be affected after the “leg slimming” injection? After the injection of “thin legs” can ensure the basic walking function, but walking for a long time may be easy to feel heavy legs, easy to fall when walking fast, especially when running. How long does the “leg slimming injection” last? How long is the interval between injections? After the injection to maintain the effect of 4 ~ 6 months, the effect is not obvious when the second injection, multiple injections can extend the injection time, generally less gastrocnemius muscle movement, can be injected 3 ~ 4 times to maintain the long-term effect. Generally, it is not recommended to do strenuous exercise within 1 week after injection, and after 1 week, it is not recommended to do strenuous exercise of the calf. How to determine whether the injection is suitable for “thin leg”? When the body is kept in an upright position, the appearance of the middle of the calf is thicker, and when you stand on tiptoe, you can sometimes see a local bulge in the middle of the calf, and if you touch the inner and outer side of the calf with your hand, if there is a hard and solid muscle bulge, you can consider injecting botulinum toxin for improvement. How can I tell if I am suitable for “shoulder slimming” injection? If the subcutaneous trapezius muscle of the shoulder and neck is too developed, or even bulges high to present the appearance of “tiger’s back and bear’s waist”, and the appearance of the neck is shorter and thicker, then it is suitable for “shoulder slimming injection”. What adverse reactions will occur after the injection of “shoulder slimming injection”? Muscle swelling after injection, which will be relieved after 3~4 days; muscle weakness, difficulty in doing shoulder shrugging; asymmetric shape of both shoulders. Under what circumstances can Botox be injected to slim the arms? If the upper 1/3 of the combined upper arm to the lateral expansion of the shoulder joint and the lateral muscle bulge is visible when the shoulder joint is abducted, the deltoid muscle is hypertrophic and can be injected with botulinum toxin. What are the adverse effects of Botox injection for arm reduction? Botox should not be injected for those who are engaged in occupations that require weight-bearing of both upper limbs because of muscle weakness and weakened lifting power of both upper limbs.