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Postpartum Thyroiditis

What is postpartum thyroiditis?

In addition to playing an important role in the development of a growing fetus, proper thyroid hormone levels also help to minimize the chance of any thyroid complications after delivery. One particular postpartum complication is postpartum (after delivery) thyroiditis, a condition characterized by an inflamed thyroid gland. Postpartum thyroiditis is not a typical infection, however, the gland does become inflamed due to a response to an injury of the gland, of which the cause is unknown. Postpartum thyroiditis is a postpartum condition that results in temporary hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid). Postpartum thyroiditis is fairly common. In fact, 5 to 7 percent of women worldwide develop the disease after giving birth, according to the American Thyroid Association.

Who is at risk for postpartum thyroiditis?

Certain risk factors may help predict who is at an increased risk for developing postpartum thyroiditis, according to the American Thyroid Association. These include the following:

  • a prior history of thyroiditis
  • blood content that includes anti-thyroid antibodies - those antibodies that have developed against the thyroid in response to the injury (Researchers know that women are four times more likely than men to have thyroid antibodies in their blood, indicating thyroiditis. The levels of antibodies increase with age, often leading to hypothyroidism later in life.)
  • a history of postpartum thyroiditis after other pregnancies

What are the symptoms of postpartum thyroiditis?

When the thyroid becomes inflamed, it will first emit large quantities of thyroid hormone into the bloodstream (hyperthyroidism). During this phase, most women are unaware of any symptoms, which are often mild and short-lived. However, once this initial phase passes, a woman either recovers completely or has sustained damage to her thyroid. If the thyroid gland was damaged, this damage, together with a depleted reservoir of thyroid hormones, can lead to hypothyroidism (underactive thyroid). This condition, too, may also clear up or result in further damage and complications.

The following are the most common symptoms of hyperthyroidism or hypothyroidism that accompany postpartum thyroiditis. However, each women may experience symptoms differently. Symptoms may include:

Hyperthyroidism
(overactive thyroid)
Hypothyroidism
(underactive thyroid)
feeling warm feeling tired
experiencing muscle weakness constipation
feeling tremulous loss of memory
experiencing anxieties cannot tolerate cold weather
rapid heartbeat cramps in the muscles
loss of concentration feeling weak
weight loss weight gain

Postpartum thyroiditis symptoms usually do not appear until three to eight months after childbirth. The symptoms are also often mistaken for normal signs of recovery from childbirth or other medical conditions. Always consult your physician for a diagnosis.

How is postpartum thyroiditis diagnosed?

Diagnostic procedures utilized to detect postpartum thyroiditis depend on the phase of the disease. If symptoms of hyperthyroidism are present, a radioactive iodine uptake test can often determine whether it is postpartum thyroiditis or Graves disease, the most common form of hyperthyroidism. In addition to a complete medical history and physical examination, diagnostic procedures for postpartum thyroiditis may include a blood test to measure levels of thyroid hormones (T4) and thyroid-stimulating hormones (TSH) can usually determine whether the mother has hypothyroidism.

Treatment for postpartum thyroiditis:

Specific treatment for postpartum thyroiditis will be determined by your physician based on:

  • your age, overall health, and medical history
  • extent of the disease
  • your tolerance for specific medications, procedures, or therapies
  • expectations for the course of the disease
  • your opinion or preference

If the postpartum thyroiditis is in the hyperthyroidism (or initial) phase, treatment is usually not necessary. However, if the condition progresses and symptoms of hypothyroidism become evident, thyroid hormone replacement therapy may be considered.

Click here to view the
Online Resources of High-Risk Pregnancy

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