From a modern medical perspective, recurrent cystitis cannot be viewed simply as a bacterial infection. While bacterial infection serves as the direct trigger, the reason some individuals recover smoothly while others experience repeated flare-ups lies in the immune system, the autonomic nervous system, and the local physiological environment of the urinary bladder.
First, frequent cystitis calls for evaluating potential damage to urothelial cells. Urothelial cells form an essential protective barrier against invading bacteria, but repeated infections, certain medications, and stress can impair this defense. Damaged urothelial cells provide a favorable surface for bacteria to adhere and multiply. They can even facilitate bacterial internalization, a process where bacteria invade urothelial cells to shield themselves from antibiotics and remain dormant. This mechanism represents a major cause of relapse following antibiotic therapy.
In addition, autonomic nervous system imbalance exerts a marked influence on urinary bladder function. Stress and irregular daily habits cause hyperactivation of the sympathetic nerve and suppress the parasympathetic nerve. Sympathetic dominance constricts blood vessels and tightens the bladder musculature, reducing local blood circulation and lowering the immunity of the bladder mucosa. In this state, inflammation develops readily and takes longer to resolve. Chronic tension also hypersensitizes bladder sensory nerves, provoking an intense desire to urinate even with minimal urine volume, or triggering pain.
Hormonal shifts play a significant role as well. In postmenopausal women, decreasing estrogen levels thin the urothelial cells and disrupt the vaginal beneficial bacteria, increasing susceptibility to urinary tract infections. In younger women, hormonal variations around menstruation can likewise affect vulnerability to cystitis.
Ultimately, addressing chronic cystitis requires a multifaceted strategy extending beyond bacterial infection. Rather than focusing solely on eliminating bacteria, supporting urothelial cell recovery, strengthening the immune system, and restoring autonomic nervous system balance allow the urinary bladder to regain its innate defense and resilience. Just as the Donguibogam highlighted the circulation of qi, modern medicine also seeks to resolve persistent conditions through systemic physiological balance.
