The odds for thyroid disease were also higher for individuals ages 40 to 59 years old.
Here are some additional facts and statistics from, most recently from 2019:
- Individuals with psoriasis have a 38% higher risk of an underactive thyroid gland, or what is also known as hypothyroidism.
- Individuals with psoriasis have a 47% higher risk of Hashimoto’s thyroiditis, which is the most common cause of hypothyroidism.
- Individuals with psoriasis have a 22% higher risk of having an overactive thyroid gland, or what is also known as hyperthyroidism.
- Individuals with psoriasis have a 26% higher risk of Grave’s disease, which causes hyperthyroidism.
The connection between psoriasis/itchy skin and thyroid disease may be type 1 T-helper (TH1) cells, which are part of the immune system.
These cells play a big part in the process of these diseases and inflammatory response.
Several experts of both diseases see shared T cells and a shared T-cell response in their affected patients.
READ THIS: Home Remedies For Psoriasis
Another perspective pointed out by health and medical experts is that the connection between psoriasis and thyroid disease could just be by chance, as other research shows that about 5% of the population has hypothyroidism, while 2-3% have psoriasis.
Whatever the case, the best approach in responding to your concerns about itchy skin and thyroid disease is to seek further medical advice from your doctor to confirm how you are affected if you are diagnosed with either disease.