The most common symptoms of mumps include fever, headache, muscle aches, tiredness, and loss of appetite followed by onset of parotitis (swollen and tender salivary glands under the ears -- on one or both sides).
Mumps can lead to hearing loss and aseptic meningitis (an infection of the covering of the brain and spinal cord) in about 10% of cases. Painful, swollen testicles occur in 20% to 30% of males who have reached puberty (orchitis) -- but rarely does this lead to fertility problems. About 30% of women who have reached puberty can have painful swollen breasts (mastitis) from mumps and, in a very few cases, inflammation of the ovaries.
Infertility means not getting pregnant after a year of regular, unprotected sex. The man, the woman, or both, may have a fertility problem. In women over 35 years old, infertility means not getting pregnant after six months of regular, unprotected sex.
Infertility doesn't always mean a person is sterile -- unable ever to have a child. Up to 15% of all couples are infertile, but only 1% to 2% are sterile. Half of couples who seek help can eventually have a child, either on their own or with...