Why does purpura nephritis have occult blood?

summary

The symptoms of occult blood in patients with Purpura Nephropathy can be judged by themselves, but it should be noted that occult blood is not a unique symptom of Purpura Nephropathy. If patients with Henoch Schonlein Purpura Nephropathy have occult blood, they should go to the hospital for examination in time. Many occult blood symptoms are easy to be misdiagnosed. We must find out the reasons. Now I put the purpura nephritis why occult blood? Let me tell you this.

Why does purpura nephritis have occult blood?

First, gross occult blood accounts for about 50% of patients with Henoch Schonlein Purpura Nephropathy. Therefore, if there is occult blood of unknown reason, Purpura Nephropathy should be included in the differential diagnosis.

Second, the criteria for judging occult blood under microscope are different. Some children's abnormal urine is transient, and it is easy to miss diagnosis if they do not reexamine;

Third: the lack of kidney live vision diagnosis. At present, there is a consensus on renal damage that even if the urine routine is normal, the kidney has different histological changes.

matters needing attention

Most patients with Henoch Schonlein Purpura Nephropathy had occult blood or proteinuria under microscope, which lasted for more than one week. 30-40% of the patients had abnormal urine routine within 4 weeks after symptoms such as purpura. The rest appeared within 8 weeks.