What causes loss of hair if you have MS and also are taking thyroid medication?

There are several possible causes of hair loss in people with multiple sclerosis (MS) who are also taking thyroid medication. Some of the most common causes include:

* Thyroid medication side effects: Some thyroid medications, such as levothyroxine (Synthroid), can cause hair loss as a side effect. This is usually temporary and will resolve once the body adjusts to the medication.

* Nutrient deficiencies: People with MS may be more likely to develop nutrient deficiencies, such as vitamin B12 and iron deficiency, which can lead to hair loss. Thyroid medication can also interfere with the absorption of certain nutrients, such as iron.

* Autoimmune reactions: MS is an autoimmune disease, which means that the body's immune system mistakenly attacks its own tissues. This can lead to inflammation and damage to the hair follicles, resulting in hair loss. Thyroid medication can also trigger autoimmune reactions.

* Stress: Stress can worsen MS symptoms, including hair loss. Thyroid medication can also cause stress, which can further contribute to hair loss.

If you are experiencing hair loss while taking thyroid medication for MS, it is important to talk to your doctor to determine the cause and discuss treatment options.