What is the white stringy stuff that comes out when you urinate?

The white stringy stuff that sometimes comes out when you urinate is most likely mucus. It's a natural substance produced by the body to lubricate and protect the urinary tract. Mucus can also help to trap bacteria and other foreign particles, preventing them from entering the body.

Although mucus in urine is usually nothing to worry about, there are some cases in which it may be a sign of a medical condition. For example, excessive mucus production can be a symptom of a urinary tract infection (UTI). If you're concerned about the amount of mucus in your urine, it's always a good idea to see a doctor to rule out any underlying health problems.