Cystitis is an infectious pathology in which the inner layer of the bladder mucosa is affected. May occur due to infection by bacteria, viral or fungal objects. This pathology occurs at any age, men, women and children are susceptible to it. This condition develops if you do not start adequate treatment of the acute process. Clinical signs are poorly expressed, there is a tendency to relapse. Laboratory diagnostics are also not very informative. It is characterized by a sluggish course of pathology, a tendency to develop complications. Acute cystitis: Symptoms develop suddenly. The clinical picture is pronounced. Symptoms appear shortly after the action of a specific factor. The duration of clinical manifestations is up to two weeks.