The formation of foam in urine is caused by the high surface tension of liquid. The higher the surface tension, the more foam is formed. Human urine contains not only most water, but also a very small amount of foam. However, if the composition of urine changes, such as protein, mucus content and organic matter increase, the surface tension can be increased.

Some people are very nervous about the foam when urinating, and feel different from normal people, for fear of getting sick. In fact, sometimes it is normal to have bubbles in your urine.

Only a few people have foam in their urine, which may contain protein. Due to the low surface tension of protein, when the content of protein in urine is high, many bubbles may appear on the surface of urine.

The urine routine is normal and frothy, which may also be related to drinking less water. You can drink plenty of water, and you can also eat some Chinese patent medicines for clearing away heat and toxic materials and tea for reducing fire.