Cataracts
1 in 5 people with Galactosemia develop Galactosemia-related cataracts as an adult, which is caused by build-up of toxic galactitol in the lens of the eye.
Anxiety and depression
People with Galactosemia experience anxiety and depression more frequently than their peers. Anxiety affects over 50% of people with Galactosemia, whereas depression affects about 12%. Symptoms of anxiety are varied, but include irritability, restlessness, lack of concentration, unwanted thoughts, insomnia, and excessive worry or fear.
Attention deficit hyperactivity disorder (ADHD)
Some adults living with Galactosemia may experience difficulty processing information quickly and may have trouble with holding attention on a single task.
Tremor
There are different types of tremor, or involuntary muscle contractions in parts of your body. Symptoms of tremor include shaking hands, arms, legs, or torso; difficulty writing or holding utensils. In rare cases, some people with Galactosemia experience vocal tremor.
Seizures
While uncommon, generalized seizures (such as "absence" or "grand mal") and sometimes partial seizures ("focal") may develop in people with Galactosemia. Epilepsy is reported in a minority of people with Classic Galactosemia.