Sudden Left Scrotal Pain: Possible Causes and Concerns Explained - Urology

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Sudden pain in the left scrotum?


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 was uncomfortable).
When I tried to lift it, the left side did not hurt, 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.
However, the right side of the scrotum was now lower, in contrast to 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 this be testicular torsion, varicocele, or another issue?

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

Dr. Du Shixi 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 advisable to seek medical evaluation.
In the meantime, you should avoid tight clothing, rest more, and refrain from prolonged standing or sitting.
Reduce sexual activity and avoid excessive stimulation.
It is important to monitor your symptoms; if the pain worsens or is accompanied by other symptoms such as fever, vomiting, or abnormal urination, you should seek medical attention promptly.

Reply Date: 2023/03/10

More Info


Sudden left scrotal pain can be concerning and may arise from various underlying conditions. Based on your description, there are several potential causes to consider, including testicular torsion, epididymitis, varicocele, or even a hernia.
1. Testicular Torsion: This is a medical emergency that occurs when the spermatic cord becomes twisted, cutting off the blood supply to the testicle. Symptoms typically include sudden, severe pain in the scrotum, swelling, and sometimes nausea. The fact that your pain decreased after sleeping is somewhat reassuring, as torsion usually does not resolve on its own and requires immediate surgical intervention. However, it is crucial to rule this out, especially since you mentioned that the left side appeared lower and there was tenderness upon touch.

2. Epididymitis: This condition involves inflammation of the epididymis, which is the tube that carries sperm from the testicle. It can cause pain and swelling, often accompanied by redness and warmth in the scrotum. Epididymitis can be caused by infections, including sexually transmitted infections, or by non-infectious causes. The pain may be more pronounced during certain movements or when pressure is applied.

3. Varicocele: This is a condition characterized by enlarged veins within the scrotum, similar to varicose veins in the legs. It can lead to a dull ache or discomfort, particularly after prolonged standing or physical activity. The asymmetry you noted, with the left side appearing lower, could be indicative of a varicocele, especially if there is a noticeable swelling.

4. Hernia: An inguinal hernia occurs when tissue, such as part of the intestine, protrudes through a weak spot in the abdominal muscles. This can cause discomfort in the groin or scrotum, particularly when lifting or straining.
Given your symptoms, it is essential to seek medical evaluation promptly. Here are some steps you should consider:
- Visit a Urologist: A urologist specializes in male reproductive health and can perform a thorough examination. They may conduct a physical examination, ultrasound, or other imaging studies to assess blood flow and identify any abnormalities.

- Monitor Symptoms: Keep track of any changes in pain, swelling, or other symptoms. If the pain returns or worsens, or if you experience additional symptoms such as fever, nausea, or vomiting, seek immediate medical attention.

- Avoid Self-Diagnosis: While it is helpful to gather information, self-diagnosing can lead to unnecessary anxiety or delay in treatment. A healthcare professional can provide a definitive diagnosis and appropriate treatment options.

In conclusion, while your symptoms may not indicate a life-threatening condition, they warrant a thorough evaluation to rule out serious issues such as testicular torsion or infection. Early diagnosis and treatment are crucial for preserving testicular health and preventing complications.

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