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The Love Side Effect
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Cystitis often occurs in women soon after sexual intercourse. What is the problem, and how can women avoid it?

Dr. Konstantin
Article author

Dr. Konstantin

Urologist, Andrologist

How sex can cause cystitis

Cystitis is inflammation of the mucous membrane of the bladder, caused by bacterial infection. Recurrent cystitis, which worsens after sexual intercourse, is called postcoital.

Unlike men, women have anatomical prerequisites for the frequent development of cystitis: they have a short urethra, and because of its proximity to the vagina and anus, bacteria penetrate it faster. This is further facilitated by motor activity during sex. In some cases, bacteria from the microflora of the sexual partner may be pathogenic.

Symptoms of postcoital cystitis appear within a day after sex. It all starts with frequent urination, followed by cutting sensations, burning sensations, and other discomfort in the lower abdomen. Urine sometimes becomes cloudy, and there may be ...

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October 28, 2025
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