The presence of foam in urine after sex is usually because some semen may remain in the urethra after ejaculation, and then mix with the urine when it&39;s expelled. This is common in men and is generally not a cause for concern. Other possible reasons include:
1. Fast Urination: Urinating quickly can also cause foam, as the urine hits the toilet water forcefully, creating bubbles.
2. Dehydration: If you&39;re dehydrated, your urine may be more concentrated, which can lead to foaming.
3. Proteinuria: Although less common, persistent foamy urine that is not related to sex might indicate proteinuria, which is an excess of protein in the urine. This could be related to kidney issues, and it’s advisable to see a doctor.
