In 4 to 7% of women, the thyroid gland malfunctions during the first 6 months after delivery. Thyroid hormone levels may be high or low, usually temporarily.
Women who have a family history of thyroid disorders or diabetes are particularly susceptible. If women already have a thyroid disorder, such as a goiter Simple Nontoxic Goiter Simple nontoxic goiter is noncancerous enlargement of the thyroid gland that does not involve over- or underproduction of thyroid hormones. Noncancerous thyroid enlargement can occur because... read more or Hashimoto thyroiditis Hashimoto Thyroiditis Hashimoto thyroiditis is chronic, autoimmune inflammation of the thyroid. Hashimoto thyroiditis results when the body attacks the cells of the thyroid gland—an autoimmune reaction. At first... read more , the disorder may become worse.
Treatment may be required for high thyroid levels (hyperthyroidism Treatment Hyperthyroidism is overactivity of the thyroid gland that leads to high levels of thyroid hormones and speeding up of vital body functions. Graves disease is the most common cause of hyperthyroidism... read more ) or low thyroid levels (hypothyroidism Treatment Hypothyroidism is underactivity of the thyroid gland that leads to inadequate production of thyroid hormones and a slowing of vital body functions. Facial expressions become dull, the voice... read more ).