The fact that the testicles are wet every night in bed is mainly considered to be related to environmental factors, seminal vesiculitis, prostatitis and other factors. 1. Environmental factors: testicular heat dissipation is relatively poor, such as the bedroom environment is high, or the bedding is too thick, may lead to testicular difficult to dissipate heat, and then the phenomenon of testicular moisture. 2. Prostatitis: its main symptoms are urinary discomfort, localized pain and testicular moisture, some patients may also have premature ejaculation and other sexual dysfunctions. 3. Seminal vesicle adenitis: it can lead to congestion, redness and swelling of the seminal vesicle glands, which is not conducive to the dissipation of heat, and can also lead to testicular dampness. 4. Varicocele: it can lead to localized congestion, redness and swelling, which may also lead to testicular dampness and other symptoms. In addition, testicular dampness may also be related to other diseases such as eczema, it is recommended that men correct their bad habits in time, if the symptoms persist, they should seek medical examination as soon as possible to clarify the cause of the disease and treat it with the cause of the disease.