Suggestion: The reasons why it can't be used can be summarized as follows. 1, the hormone level in menstrual women changes, pelvic and uterine congestion and the body's resistance decreases. The use of essential oil can easily lead to increased bleeding and prolonged menstrual period. It is recommended not to use essential oil easily during menstrual period. 2, for "essential oil with the effect of promoting blood circulation and dredging menstruation, such as rose essential oil", it is absolutely unnecessary! If you use it during menstruation, it will increase your bleeding and it will not be easy to end! Scope of use: It is best to start using it 7 days after the end of menstrual period. If used 2-3 days after the end, it may lead to menstrual period recurrence. Stop using it three days before the next menstrual period, remember. 3. For "slimming essential oil", if it is used during menstruation, it will easily affect the normal hormone secretion, which is likely to lead to dysmenorrhea, so it is best not to use it in moderation. 4. For "breast enhancement essential oil", because breast enhancement essential oil often contains one side of menstruation, it may lead to an increase in blood volume, but it also varies from person to person. Generally speaking, breast enhancement essential oil has little effect on menstrual flow, but in order to avoid unnecessary harm, it is best not to use breast enhancement essential oil during menstruation. In short, menstrual women's resistance drops, so it is better to do less stimulating activities. 95% of essential oils have the function of dredging menstruation, which may increase the amount of bleeding. If you are not sure, you'd better use them properly. It is recommended not to use any essential oil during menstruation. In addition, special reminder, never use it during pregnancy, no matter what the reason.