What should you do if took a few hard knocks to your stomach and are very sore have blood in urine?

Seek immediate medical attention. Blood in the urine (hematuria) after abdominal trauma is a serious symptom that could indicate internal injuries, including damage to the kidneys, liver, or spleen.

Here are some steps you should take:

1. Call your doctor or emergency services immediately. This is especially important if the blood in your urine is accompanied by severe abdominal pain, vomiting, or difficulty breathing.

2. Lie down and avoid any further physical activity. This will help to reduce the risk of further injury.

3. Apply a cold compress to the abdomen. This will help to reduce pain and swelling.

4. Drink plenty of fluids. This will help to flush out any blood from the kidneys and reduce the risk of infection.

The doctor will likely order some tests, such as a urine analysis and a CT scan, to determine the cause of the blood in your urine and to assess the extent of any injuries. Treatment will depend on the underlying cause of the blood in your urine and may include surgery, medication, or observation.