Benign Prostatic Hyperplasia (BPH) or Prostatitis: Although less common in younger men, BPH or prostatitis could still be a cause of urinary difficulty due to inflammation or enlargement of the prostate gland, which could obstruct urine flow.

Urinary Tract Infection (UTI): UTIs can cause dysuria (painful urination), frequency, and urgency, which might be perceived as trouble urinating.
Urethral Stricture: This condition, characterized by a narrowing of the urethra, can cause obstructive urinary symptoms such as difficulty starting urination, weak urine flow, and straining to urinate.
Neurogenic Bladder: Conditions affecting the nerves that control bladder function can lead to urinary retention or difficulty urinating.

Cauda Equina Syndrome: A serious condition where the nerves in the spinal canal are compressed, leading to loss of bladder and bowel control, among other symptoms. It requires immediate medical attention.
Spinal Cord Injury: Trauma to the spine can result in neurological deficits, including problems with urination.
Testicular Cancer with Metastasis: Although rare, testicular cancer can metastasize and cause neurological symptoms or obstructive uropathy, leading to urinary difficulties.

Bladder Neck Contracture: A condition where the bladder neck narrows, causing obstructive urinary symptoms.
Schistosomiasis (Bilharzia): A parasitic infection that can cause urinary symptoms, including difficulty urinating, especially in individuals who have traveled to or lived in endemic areas.
Amyloidosis: A condition characterized by the deposition of abnormal proteins (amyloid) in various tissues, which can affect the bladder and cause urinary retention or difficulty urinating.