Feeding is poor and the infant may choke frequently. Constipation is common. Affected children do not cry much, but sleep excessively and are sluggish and inactive. Muscle tone is usually decreased. If untreated, hypothyroidism can lead to severe mental retardation and growth retardation.
Development is delayed early on, often indicated by failure to meet normal milestones.
The appearance of teeth may be delayed. These problems become more severe as the child ages. Growth failure in terms of body length is noted very early. The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.