Foam is formed from liquid and air permeating it, collected in the bottle when urine is passed into it. The air released along with the urine substance also inevitably contributes to the formation of foam, especially when there is a lot of air in the body. For example, a lot of foam forms in the urine of those suffering from tamaddud.
Symptoms can be determined by the color of the urine foam, for example, black and yellow color indicate jaundice; or by the small and large size of the bubbles, for example, large bubbles in foam indicate the stickiness of urine; or by the scarcity and abundance of foam, for example, the abundance of foam indicates the stickiness of urine and the presence of a large amount of air in it. Or persistence or rapid disappearance, for example, long standing foam in kidney diseases indicates the stickiness of urine and the duration of the disease. When foam indicates the presence of air in it and stickiness, this means that the disease is still ongoing.
In short, sticky juices in kidney diseases are a bad sign and indicate the presence of bad juices in the body and a cold nature.