Unilateral orchitis caused by mumps does not usually affect male fertility. Mumps virus-induced orchitis can cause testicular pain, swelling and other symptoms, and in severe cases, it can also lead to testicular atrophy, which impairs the spermatogenic ability of the testes. However, since there are two testes in a man, as long as the testes on the opposite side are relatively healthy, it will not affect the fertility of the male in general. For mumps-induced unilateral orchitis, most of them can be cured as long as timely treatment is carried out, and the main treatment method is medication, such as interferon alpha-2b, gammaglobulin, and so on. During the treatment period, it is important to follow the doctor’s instructions, reasonable use of medication, and do a good job of daily care, which is conducive to the recovery of mumps testicular inflammation.