hands turning blue

Hello and welcome to e health forum.

Conditions that can cause cold hands and feet, Bluish discoloration include conditions like ‎hypothyroidism, raynaud’s syndrome, coagulation disorders, etc.

The first step in diagnosis of the condition would be tests including a complete hemogram, a coagulation profile, peripheral blood smear, thyroid function tests, coagulation factor assays, screening for rheumatological conditions can be done.

During a Raynaud's attack, the affected area typically turns white, and due to hypoxia, it turns blue. Symptoms include tingling or painful throbbing, and swelling which can resolve quickly or may last for hours. ‎

Raynaud's is a condition seen on its own, but also shows up as a "secondary" disease alongside other ‎autoimmune diseases, including Hashimoto's disease, Graves' disease, lupus, Sjögren's Syndrome, ‎scleroderma, and rheumatoid arthritis, among others.‎

If your symptoms are due to Raynaud's, beyond proper thyroid treatment, avoiding or minimizing cold ‎exposure is a key way to avoid symptoms. If you are a smoker, you should also stop smoking, as that is ‎known to aggravate symptoms. In severe cases medications may be prescribed to help control the ‎symptoms. ‎

You may consult with your doctor or a hematologist for proper counseling and advice.