Yes According to 39 Health Network, you need to go to the hospital as soon as possible. Expander is a unique and advanced treatment method in plastic surgery. The principle is that the skin and soft tissue expander is implanted under the normal skin and soft tissue near the lesion, and liquid is intermittently injected into the expansion sac to increase the capacity of the expander and make it exert pressure on the skin and soft tissue on the body surface. So the dilator is leaking, and there are remedial measures.