I started urinating, it felt a bit foamy at the very beginning of stream for a millisecond.never happened before.normal or serious? concerns:cancers

Do you have any : Other symptoms like burning during urination, increase frequency of urination, cloudy urine, lower belly tenderness, bloody urine? If you feel well don't worry. Drink a lot of water. If symptoms continue see a physician for a urine test. You possibly passed a tiny stone of group of them. Low cancer possibility now.

No: Likely not cancer. If it only happened one time, i wouldn't worry about it. If it keeps happening, you might get it checked out by your physician.