Can You Get Pregnant from Touching Dried Sperm on Public Transport? - Urology

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Sperm survival rate


I understand your concern, but it is highly unlikely to become pregnant from touching dried semen on public transportation and then touching yourself.
Sperm typically dies quickly once exposed to air and dries out, losing its ability to fertilize an egg.
Even if you were to touch a small amount of dried semen, the chances of any viable sperm remaining are extremely low.
Thank you for your question.

Niming, 10~19 year old female. Ask Date: 2019/08/31

Dr. Du Shixi reply Urology


Hello: Absolutely not, wishing you good health.

Reply Date: 2019/08/31

More Info


The question of whether one can get pregnant from touching dried sperm on public transport and then touching oneself is a common concern, particularly among those who may not fully understand the biology of sperm and the conditions necessary for conception. To address this question, we need to consider several factors regarding sperm viability, the conditions required for pregnancy, and the nature of dried sperm.

Firstly, sperm must be alive and motile to fertilize an egg. When sperm is exposed to air and dries out, it loses its viability very quickly. Dried sperm is generally no longer capable of fertilizing an egg. The environment outside the human body is not conducive to sperm survival; they require specific conditions, including moisture and a suitable temperature, to remain viable. Once sperm dries, it becomes inactive and cannot swim or fertilize an egg.

In the scenario where someone touches dried sperm on public transport, the likelihood of transferring viable sperm to oneself is extremely low. Even if a person were to touch dried sperm, the chances of it being transferred to their hands and then to their genital area in a way that could lead to pregnancy are negligible. The sperm would need to be in a liquid state and present in sufficient quantity to pose any risk of pregnancy.
Moreover, the act of touching oneself after coming into contact with dried sperm does not create a conducive environment for sperm to become active again. The human body’s natural defenses, such as the acidic environment of the vagina, further inhibit any potential for sperm to survive and fertilize an egg.
In terms of sensation, touching dried sperm may not produce any significant feeling, as it would be similar to touching any other dried substance. The texture and consistency of dried sperm can vary, but it is unlikely to elicit a strong physical response.

In conclusion, the possibility of getting pregnant from touching dried sperm on public transport and then touching oneself is virtually nonexistent. The sperm would be dead, and the conditions necessary for conception would not be met. If there are any concerns about potential exposure to bodily fluids in public spaces, it is always a good practice to wash hands thoroughly with soap and water afterward.
For those who are still worried about the risk of pregnancy or sexually transmitted infections (STIs), it is advisable to consult a healthcare professional for personalized advice and to discuss any further concerns. Education about reproductive health and understanding how pregnancy occurs can help alleviate unnecessary anxiety regarding such situations.

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