the Relationship Between Erection and Scrotal Response - Urology

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The relationship between penile erection and the scrotum?


Is it normal for my scrotum to remain hanging and not contract when my penis is erect? I have seen articles suggesting that the scrotum tightens during an erection.

You Ren, 30~39 year old female. Ask Date: 2022/03/17

Dr. Fu Shizhang reply Urology


During an erection, the scrotum may not necessarily contract.
The contraction of the scrotum is related to the cremasteric reflex.
Online consultations cannot replace an in-person examination and physical assessment by a physician.
If there are any health concerns, it is still recommended to seek medical attention at a healthcare facility.

Reply Date: 2022/03/17

More Info


The relationship between penile erection and scrotal response is an interesting aspect of male physiology. During sexual arousal, the body undergoes a series of physiological changes, including the erection of the penis, which is primarily due to increased blood flow to the erectile tissues. This process is mediated by the relaxation of smooth muscles in the blood vessels of the penis, allowing for engorgement with blood.

In terms of scrotal response, it is important to understand that the scrotum, which houses the testicles, is designed to regulate the temperature of the testes for optimal sperm production. The cremaster muscle, which surrounds the testicles, contracts to pull the scrotum closer to the body when it is cold, and relaxes to allow the scrotum to hang lower when it is warm. This contraction and relaxation can also be influenced by sexual arousal, but the response can vary significantly among individuals.

It is normal for some men to experience a tightening of the scrotum during an erection, as the body prepares for potential sexual activity. However, not all men will exhibit this response consistently. Factors such as individual anatomy, hormonal levels, and even psychological factors can influence how the scrotum reacts during an erection. For some men, the scrotum may remain relaxed and hang lower even when the penis is erect, which is also perfectly normal.

If you notice that your scrotum does not tighten during an erection, it is generally not a cause for concern unless accompanied by other symptoms such as pain, discomfort, or changes in sexual function. Each person's body is unique, and variations in physiological responses are common. If you have any concerns about your sexual health or if you experience any unusual symptoms, it is advisable to consult a healthcare professional who can provide personalized guidance and reassurance.

In summary, while it is common for the scrotum to tighten during an erection, it is not a universal response. The lack of scrotal contraction during an erection is not necessarily abnormal and can vary from person to person. Understanding your body and its responses is important, and if you have any doubts or concerns, seeking medical advice is always a good step.

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