Sudden Left Scrotal Pain: Causes and Concerns Explained - Urology

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Sudden pain in the left scrotum for several hours?


Hello Doctor: After taking a shower yesterday, I suddenly experienced pain in the left scrotum for several hours (I could still walk and urinate, but it felt uncomfortable).
When I tried to lift it, there was no pain on the left side, but touching the testicle and the area connecting to the penis was painful and uncomfortable.
Additionally, the left side appeared to be significantly lower than the right side.
Later, I forced myself to sleep, and upon waking, the pain had noticeably decreased, and the right side of the scrotum was now lower, which was the opposite of last night.
Touching the left testicle no longer caused pain, but when I palpated upwards (towards the area connecting to the penis), the left side felt somewhat swollen compared to the right side.
Could you please advise if this could be testicular torsion, varicocele, or another issue?

Niming, 20~29 year old female. Ask Date: 2023/03/10

Dr. Liu Mingyue reply Urology


Hello: There is a critical time frame for testicular torsion, and what happened yesterday is unlikely to be it.
However, conditions such as varicocele or inflammation of the testis or epididymis are possible.
It is recommended to seek medical evaluation.
In the meantime, avoid wearing tight clothing, rest more, and refrain from standing or sitting for long periods.
Reduce sexual activity and avoid excessive stimulation.
It is important to monitor symptoms; if the pain worsens or is accompanied by other symptoms such as fever, vomiting, or abnormal urination, seek medical attention promptly.

Reply Date: 2023/03/10

More Info


Sudden left scrotal pain can be concerning and may arise from various causes, some of which require immediate medical attention. Based on the symptoms you described, it is essential to consider several potential conditions that could be responsible for the pain and changes in the appearance of your scrotum.

1. Testicular Torsion: This is a medical emergency where the spermatic cord becomes twisted, cutting off the blood supply to the testicle. Symptoms typically include sudden, severe pain in one testicle, swelling, and sometimes nausea. The fact that you experienced sudden pain and discomfort, especially if it was severe, raises the possibility of torsion. However, the fact that the pain decreased after sleeping and that you can still walk and urinate without severe discomfort may suggest that this is less likely, but it should not be ruled out without a proper examination.

2. Epididymitis: This condition involves inflammation of the epididymis, often due to infection. Symptoms can include pain, swelling, and tenderness in the affected testicle. The pain may be gradual rather than sudden and can be associated with fever or urinary symptoms. If the pain persists or is accompanied by other symptoms, this should be evaluated by a healthcare professional.

3. Varicocele: This is a condition characterized by enlarged veins within the scrotum, similar to varicose veins in the legs. It can cause a dull ache or discomfort, particularly after prolonged standing or physical activity. The fact that you noticed a difference in the position of your testicles could suggest a varicocele, especially if there is a noticeable swelling or heaviness.

4. Hernia: An inguinal hernia occurs when tissue protrudes through a weak spot in the abdominal muscles. This can cause discomfort or pain in the groin or scrotal area, particularly when lifting or straining. If you notice a bulge in the groin or scrotum, this could be a sign of a hernia.

5. Trauma or Injury: Sometimes, trauma to the area can cause sudden pain and swelling. If you have had any recent injuries, this could be a contributing factor.

Given the complexity of the symptoms and the potential for serious conditions like testicular torsion, it is crucial to seek medical evaluation as soon as possible. A healthcare provider will likely perform a physical examination and may order an ultrasound to assess blood flow to the testicle and check for any abnormalities.

In summary, while the pain may have decreased and the swelling may have changed, it is essential to consult a healthcare professional to rule out serious conditions such as testicular torsion or other issues. Early diagnosis and treatment are vital to prevent complications and ensure the best possible outcome. If you experience any worsening symptoms, such as increased pain, swelling, fever, or changes in urination, seek immediate medical attention.

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