Kidney failure, or end-stage renal disease (ESRD), impacts the kidneys’ ability to filter waste and fluids. This can lead to harmful levels of waste in the body, causing various health problems. Early detection is key, so here are some common signs:

1. **Discolored Urine**: Changes in color, frequency, or presence of blood, foam, or an unusual smell in urine may indicate kidney issues.
2. **Sleep Problems**: Difficulty sleeping, sleep apnea, or loud snoring could be related to kidney failure.
3. **High Blood Pressure**: Kidney problems can cause high blood pressure due to impaired filtration.
4. **Back Pain**: Pain in the lower ribs or groin, especially when paired with vomiting, fatigue, or frequent urination, may signal kidney failure.
5. **Swollen Ankles**: Retained sodium from kidney failure can cause swelling in the ankles, hands, and feet.
6. **Shortness of Breath**: Difficulty breathing, especially when moving, may be a result of impaired kidney function.
7. **Bad Breath**: A foul odor from the mouth can be caused by toxins accumulating in the body.
8. **Itchy Skin**: Dry, itchy, or peeling skin could signal kidney problems, as unhealthy kidneys fail to filter waste properly.

If you experience any of these signs, consult a doctor for proper evaluation and management.