What causes a strong urge to urinate but inability to pass urine?

Under normal circumstances, a strong urge to urinate but inability to do so may be related to conditions such as urethritis, benign prostatic hyperplasia (prostate enlargement), or bladder neck obstruction. Specific details are as follows:

1. Urethritis

Urethritis can cause narrowing of the urethra, thereby affecting urine outflow. This condition is often accompanied by symptoms such as frequent urination, urgency, dysuria (painful urination), and incomplete voiding. Patients are advised to drink plenty of water, maintain good personal hygiene, and avoid spicy or irritating foods. Treatment may include medications such as amoxicillin capsules or nitrofurantoin enteric-coated tablets, taken as directed by a physician.

2. Benign Prostatic Hyperplasia (BPH)

BPH is one of the common conditions in elderly men and can lead to urethral narrowing, thus impairing urine flow. Symptoms often include weak urinary stream, urinary frequency, and urgency. Patients are advised to take medications such as terazosin hydrochloride tablets or alfuzosin hydrochloride tablets as prescribed by their doctor.

3. Bladder Neck Obstruction

Bladder neck obstruction refers to a narrowed bladder neck that impedes urine outflow. Common symptoms include a strong urge to urinate but inability to void, weak urinary stream, urinary frequency, and urgency. Patients should consult a physician to discuss surgical treatment options such as transurethral incision of the bladder neck or bladder neck Y-V plasty.

In addition, other conditions such as pyelonephritis, cystitis, or urinary tract stones may also cause similar symptoms. Patients experiencing discomfort should seek medical attention promptly to avoid delays in treatment. Additionally, maintaining a light diet and getting adequate rest are recommended in daily life.