Most commonly, between the ages of 20-40.
can appear at any age, it is most common in children and young adults. Symptoms usually abate before the age of 25 and do not affect the patient's general health.
The onset of MS is usually at age 20 to 40 years
Significant enlargement and symptoms usually do not appear until after age 50
Schizophrenia is an adult onset disorder, and symptoms usually appear after a particularly stressful period of time.
Symptoms of the disease appear before age 15
it usaly appers at 14
Symptoms, which usually appear by age 20, include vision problems, loss of muscle coordination, loss of sense of smell, pain, numbness, and elevated protein in the cerebrospinal fluid.
PKU and T-S are generally diseases of children. In most cases, the symptoms of Huntington's appear gradually, usually starting after age 30. You can get more information on HD from the wesite for HDSA.
At about 2 to 8 months of age
Multiple sclerosis (MS) can appear at any age, but it is most commonly diagnosed in people between the ages of 20 and 40. However, cases of pediatric MS (diagnosed before age 18) and later-onset MS (diagnosed after age 50) also occur.
The actual changes in the prostate may start as early as the 30s but take place very gradually, so that significant enlargement and symptoms usually do not appear until after age 50.