Is it true that pediatric hydronephrosis will heal itself after the age of 6?

It is not true that pediatric hydronephrosis will resolve itself after the age of 6 years.
The development of hydronephrosis in children may be caused by the accumulation of urine in the kidneys due to narrowing of the lumen of the urinary tract anywhere from the kidneys to the external orifice of the urethra, and urinary tract obstruction. Since the urinary system is already diseased and the disease is usually not self-limiting, it usually does not heal on its own. It needs to be treated with medication and surgery to make the urinary tract open again and the urine excreted out of the body smoothly.
For patients with concurrent infections, antibiotics such as ofloxacin and amoxicillin can be chosen. For patients with symptoms of renal colic, non-steroidal anti-inflammatory drugs can be chosen, such as diclofenac sodium, pethidine and so on.
For some patients with ureteral stenosis and obstruction, double J tube can be chosen to be placed via cystoscopy in order to achieve the purpose of drainage of urine in the kidney and protection of renal function. For patients with severe destruction of renal function in hydronephrosis, if the opposite side of the kidney has normal function, the affected side of the kidney can be surgically removed.
If a child has hydronephrosis, it is recommended that parents take their children to a regular hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.