Ketonuria is a medical condition in which high amounts of ketones and ketone bodies are present in the urine. 

Ketonuria can occur due to many reasons including drinking excess alcohol, excessive vomiting, pregnancy, starvation, illness or infection, heart attack, emotional or physical trauma, and medications, such as corticosteroids and diuretics.

If you have type 1 diabetes, your body may produce very little insulin and more ketones. When this happens, your body breaks down the tissues into ketones, which can be used as fuel without the need for insulin.

The symptoms of ketonuria can include thirst, fruity smelling breath, dry mouth, fatigue, nausea or vomiting, and frequent urination among others.

You may also have the signs of illnesses such as sepsis, pneumonia, and urinary tract infections that can lead to high ketone levels.

Ketonuria may be dangerous if ketones levels become high. It needs to be monitored amongst people with diabetes who are prone to high blood glucose levels. Taking extra insulin depending on the level of ketones is one of the treatments to cure ketonuria