Urethral Catheterization: Purpose, Indications, and Complications
Definition of Catheter:
In medicine, a catheter is a thin tube made from medical-grade materials serving a broad range of functions. Catheters are medical devices that can be inserted into the body to treat diseases or perform a surgical procedure. A unitary catheter is a flexible tube used to empty the bladder and collect urine in a drainage bag.
Definition of Urethral Catheterization:
Catheterization is the introduction of a catheter (a hollow, flexible tube) into a body cavity or organ to inject or remove a fluid. Catheterization is the process of putting a tube into the body to allow fluids to pass or to make a passage wider.

Purpose of Urethral Catheterization:
Key purposes of urethral catheterization are listed in the following:
- To empty the bladder when the patient cannot pass urine or to provide continuous drainage.
- To get a sterile sample of urine directly from the bladder for testing when the urethra is affected by an infectious disease.
- After a certain operation on the bladder, urethra, or prostate.
- During paralysis of the bladder, it is a lower motor neuron type of paralysis.
- To differentiate the diagnosis between suppression of nine and retention of urine.
Indications for Urethral Catheterization:
All the indications of urinary catheterization are mentioned below:
- To relieve acute and chronic urinary retention.
- To collect a sample of a sterile urine specimen.
- To relieve discomfort caused by bladder distension.
- To assess the amount of residual urine in case of incomplete emptying.
- To manage patients with spinal cord injuries.
- In case of prostatic enlargement, to prevent outflow.
- Preoperative use for selected surgical procedures.
- Patients undergoing urological surgery or other surgery on contiguous structures of the genitourinary tract.
- Emptying the bladder before, during, or after surgery and before certain diagnostic examinations.
- Need for intra-operative monitoring of urinary output.
- Anticipated prolonged duration of surgery.
- To prevent urethral irrigations.
- To give bladder irrigations.
- Management of intractable incontinence.
- In case of terminal illness.
- Need for accurate measurements of urinary output in critically ill patients.
- To manage incontinency in unconscious patients.
- To improve comfort for end-of-life care if needed.
- To assist in the healing of open sacral or perineal wounds in incontinent patients.
- Patient requires prolonged immobilization (e.g., potentially unstable thoracic or lumbar spine, multiple traumatic injuries such as pelvic fractures).
Urinary Catheterization Contraindications:
It Includes-
- Acute prostatitis.
- Suspicion of urethral trauma.
Complications of Urinary Catheterization:
It Includes-
- Injury to the urethra,
- Haemorrhage,
- Infection,
- Stone formation,
- Blockage of the catheter,
- Stricture urethra.
More questions related to this article:
- Define catheter.
- What is a catheter?
- Define catheterization?
- What do you mean by catheterization?
- What are the purposes of urethral catheterization?
- What are the indications of urinary catheterization?
- What are the contraindications of urinary catheterization?
- What are the complications of catheterization?
- Mention the complications of catheterization.

Maria Khatun Mona is a Founder and Editor of Nursing Exercise Blog. She is a Nursing and Midwifery Expert. Currently she is working as a “Senior Staff Nurse” at “Dinajpur Medical College Hospital”, Bangladesh. She has great passion in writing different articles on Nursing and Midwifery. Mail her at “maria.mona023@gmail.com”
