This kind of problem is quite common and eventually will occur in all condom users, especially within the same, single relationship. High levels of arousal must be maintained during condom wearing in order to help the erection sustain itself. This is why it is often recommended that sexual partners help during the wearing of condoms, with ongoing sexual stimulation. This problem is very common, and even though you must screen yourself periodically for diseases that might cause erectile dysfunction (ED), difficulty in wearing a condom is not always indicative of underlying disease and occurs in perfectly healthy men too. The main cause is a shift in sexual attention and sudden cessation of sexual stimulation.