Morning urine has foam in the afternoon, generally because the morning urine is more concentrated, the protein content is higher, the afternoon urine is relatively diluted, there are less formed components, easy to produce foam. Usually the morning urine refers to morning urine, the composition is more concentrated, the content of protein or other components is relatively high, easy to increase the phenomenon of foam. After drinking a lot of water in the daytime, the active ingredients in the urine in the afternoon, including inorganic salts and other relatively diluted, not easy to produce foam. Foamy urine is mostly considered to be a change in the composition of urine, such as protein in the urine or urine sugar, resulting in increased foam in the urine or foam is not easy to dissipate. The patient can go to the hospital to do urine routine testing, etc., after diagnosis, it is recommended to treat the symptoms. Foam in the morning urine in the afternoon, if there are no other obvious symptoms can not do special treatment, the emergence of uncomfortable symptoms in a timely manner to consult the doctor.