Most children present with oedema and visible haematuria. However, hypertension can occur with no oedema and with haematuria only detected on reagent strips.

Children usually recover completely. By 2 weeks the urine output increases and the oedema and hypertension disappear. The urine may remain dark (due to blood) for up to 6 weeks but blood may be detected on reagent strips for a few months.

It is very important to look for signs of complications.