Well, the answer depends on the duration of exposure. If you immerse yourself in hot water for a prolonged period of time say on average 30 mins per day every day, your sperm count and sperm motility will definitely become less. However, hot water baths are not always bad, you can take a hot water bath once in 2 weeks or occasionally. But if you are trying for a child studies have clearly shown a 14% reduction in sperm count with 30 minute exposure time. In fact even a 10 minute exposure to hot water can actually raise your scrotal or testis temperature dangerously close to your core body temperature. Thus, if you are trying for a child, I would say please avoid the hot water completely…Read more