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Now many women will choose to wear tight underwear during menstruation, they think that this can not only avoid the embarrassment of side leakage, but also relieve abdominal pain to a certain extent, in fact, this is unscientific, women in the menstrual period is best to choose slightly looser underwear. Women must know what underwear to wear during menstruationForeign medical studies have shown that a large proportion of gynecological diseases are caused by wearing tight underwear. Endometriosis is currently a disease with a high incidence and one of the causes of the disease is endometriosis caused by reverse flow of blood into the abdominal cavity, and the most common problems in patients are dysmenorrhea and infertility. If women often wear tight underwear, especially during menstruation, it is easy to make menstrual blood flow poorly, and when taking off, it will also make the pelvic and abdominal pressure suddenly change, which can easily cause menstrual blood reverse flow, and eventually menstrual back pain, abdominal pain, and even lead to infertility.

The benefits of special logistics lines are lower transportation costs、 definite arrival time、 and the ability to meet urgent goods. The logistics special lines of logistics companies are available in all the outlets nationwide、 with relatively stable speed and relatively high credit. The travel time of special line companies is generally determined、 the route is fixed、 and the transportation cost of customers will also be reduced.

The international special line logistics adopts the international direct flights to the destination countries、 the goods are short in transit、 the price is cheaper than the general logistics、 the formal commercial customs clearance、 the customs clearance sales are high、 and the direct delivery to customers is a very cost-effective logistics transportation scheme.

Cross border special line small parcels are generally the logistics method used by e-commerce self delivery sellers. They are cheaper than international express delivery、 and faster and safer than postal parcels. However、 there are also differences in the service of special line packets. For example、 cross-border packets in TODROPSHIPPING also have registered mail and peace mail. Generally speaking、 the time limit of special line registered mail is a little faster than that of ordinary mail. At the same time、 registered mail can track packages、 while ordinary mail does not provide tracking service because its price is cheaper. Therefore、 not all cross-border special line logistics can be tracked、 depending on the service you choose.

The special line for small packages combines the advantages of small packages and special lines. It is a logistics channel for delivering small packages by air、 sea and other transportation methods、 focusing on the transportation of small packages.

The small package special line is the small package and the special line. Small parcels、 which are suitable for relatively small items、 and small parcels sent abroad through postal air mail service、 can be called international small parcels.

The special line refers to the route channel to specific countries、 the general British special line、 the American special line、 and the German special line are international special lines、 and there are air transportation、 sea transportation、 and rail transportation.