honeypot link
skip to main content
skip to main content
Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
Home
/
Kidney and Urinary Tract Disorders
/
Symptoms of Kidney and Urinary Tract Disorders
/
Symptoms of Kidney and Urinary Tract Disorders
Expand all
Collapse all
Overview of Urinary Tract Symptoms
Blood in Semen
Causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Key Points
Blood in Urine
Causes
Common causes
Less common causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Key Points
Changes in Color or Odor of Urine
Brown urine
Black urine
Red urine
Cloudy urine
Malodorous urine
Excessive or Frequent Urination
Causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Essentials for Older Adults
Key Points
Flank Pain
Causes
Evaluation
Treatment
Gas in Urine
Pain or Burning With Urination
Causes
Common causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Key Points
Persistent Erection
Ischemic priapism
Nonischemic priapism
Causes
Common causes
Less common causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Key Points
Scrotal Pain
Causes
Common causes
Less common causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Essentials for Older Adults
Key Points
Scrotal Swelling
Causes
Common causes
Less common causes
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Key Points
Urinary Hesitating, Straining, and Dribbling
Urinary Urgency