What causes yellow foam?

It shows that the urine is yellow and frothy, but it should be considered that it is caused by too little drinking water. A large amount of concentrated urine will show an increase in tension, and under a large amount of impact, it can show a significant increase in foam. This situation generally does not require special treatment, and can be significantly relieved after drinking a large amount of water. If a urinary infection is present, it can also show a deepening of the color of the urine, and frequent urination and pain can often occur at the same time. In addition, if there is a problem of liver insufficiency, it will show a significant increase in urobilinogen, showing yellow urine and increased foam, which can be considered to the hospital for a routine urine examination and liver function examination, and further clarification.