Aneurysms do not disappear by themselves. The cause of aneurysms is the thickening of the inner and outer membranes of the blood vessels when the arteries are subjected to high pressure, which leads to expansion as the disease progresses, and the gradual aggravation of this situation will produce a blood vessel width much larger than the diameter of the original vessel, leading to the formation of aneurysms. You cannot wait for the aneurysm to disappear on its own, and there is no such possibility. Aggressive treatment can be carried out by sealing the aneurysm with an overlapping stent to avoid its rupture, or by using medical treatment, including blood pressure control and regular observation, but it should be noted that if the diameter of the aneurysm increases in a short period of time, surgery should be performed as soon as possible.