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Disadvantages of Hydrotubation

Hydrotubation is to inject the methylene blue or normal saline into the uterine cavity from the cervix, and then it will flow from the uterine cavity into the fallopian tub. According to the size of the resistance and backflow of fluid, doctors can judge whether the fallopian tube is obstructed or not.
Through a certain pressure of the liquid, the blocked fallopian tube can be restored to be the unobstructed state. Hydrotubation can not only check whether the fallopian tube is unobstructed but also has a certain therapeutic effect in separating the mild adhesion. Although the operation of Hydrotubation is simple, it has certain blindness.
Disadvantage No. 1
Hydrotubation is to use a catheter to inject liquid into the uterine cavity. The volume and surface area of the uterine cavity is much larger than the cross-sectional area of the catheter and the Hydrotubation.
According to the principle of hydrodynamics, the pressure is equal to the pressure percent of the force area, so the pressure of the injected liquid into the Hydrotubation is very limited.

Disadvantage No. 2
The basic principle of HSG is basically the same as that of Hydrotubation. If the adhesion of the fallopian tube is mild, it will be unobstructed after HSG. If the condition can not be treated by HSG, then there will be no effect after Hydrotubation.
Disadvantage No. 3
Hydrotubation is a kind of blind operation. In the process, we can't see the specific process of the injected fluid in the patient's body, so we can't make clear the location and nature of the tubal obstruction, which is of no help to determine the treatment method and effect of tubal obstruction.

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