further investigation.
## 23. Chest Pain or Pressure
Chest discomfort can occur in advanced kidney disease, but this is not a symptom to monitor casually.
Chest pain may be caused by serious heart, lung, or circulatory conditions.
Seek urgent medical care if chest pain is:
* sudden
* severe
* worsening
* accompanied by shortness of breath
* associated with fainting or heavy sweating
## The Most Important Sign May Be No Sign at All
One of the biggest misconceptions about kidney disease is that it always causes obvious symptoms.
Early chronic kidney disease often produces **no
