Signs and Symptoms of Hypoactive Thyroid Disorder

The signs and symptoms of a hypoactive thyroid disorder, referred to as hypothyroidism, often progress and develop over a time span of several years and can vary in intensity and severity, according to the Mayo Clinic. Inefficient production of thyroid hormones over time, which help to regulate metabolism, leads to hypothyroidism and the resultant signs and symptoms, which can begin to interfere with one's quality of life.

Physical Signs

• Hypothyroidism may initially present with physical signs and symptoms. These can include fatigue and increased sluggishness. Along with fatigue, patients may notice muscle weakness and pain or stiffness in joints with movement. Unexplained weight loss, a puffy face, pale skin and a hoarse voice can all be physical indicators of a hypoactive thyroid. For females, a heavier menstrual period may be noticeable. In children, physical signs may include excessive sleepiness, frequent choking and poor muscle tone.

Mental Signs

• The drain of hypothyroidism on metabolism and the proper functioning of the human body can lead to diminished mental health. Someone with hypothyroidism may be forgetful, be slow to process information or make decisions and may suffer from depression. Depression can worsen if the signs of depression, such as sadness, are not taken seriously and addressed. Particularly in children, the disease can result in poor mental development and possibly mental retardation if signs and symptoms aren't recognized early on.

Signs of Complications

• Upon progression of the disease, sufferers may notice a goiter. Appearing as a lump on the front-side of the neck, a goiter can affect breathing, swallowing and appearance. Goiters develop from the repetitive stimulation of the thyroid to produce the hormones your body requires. Left untreated, the physical symptoms of an under-active thyroid can become more severe and lead to an enlarged heart, an increased risk of heart disease and infertility. The children of pregnant women who are unaware of their condition may face a higher rate of birth defects, including developmental and intellectual difficulties, according to the Mayo Clinic.