I have read in sources not related to thyroid cancer, that when the body experiences a stressful situation such as surgery, serious illness, etc., a horizontal ridge occurs on the nails (not just the thumbnail), and it will be visible when the nail has grown out from the nailbed.

That’s because many signs and symptoms of thyroid disease develop on the skin, hair, and nails. 20 nails … Besides, when horizontal lines are present on all nails i.e. Mine is horizontal though, so don't know if this is due to the thyroid for sure in my case. Vertical nail ridges, which are fairly common, extend from the cuticle to the tip of your nail. Beau's lines: Most indentations or ridges that are horizontal across the nail plate are caused by an infection or an injury, says Jaliman. "Hello docs. All these symptoms are associated with under active thyroid disorders, and you should have your thyroid evaluated. These horizontal ridges on the fingernails are sometimes seen in patients with liver cirrhosis, diabetes, kidney disease or HIV infection. Nail pitting can also be related to connective tissue disorders, such as Reiter's syndrome, and alopecia areata — an autoimmune disease that causes hair loss.

See detailed information below for a list of 3 causes of Horizontal nail ridges, including diseases and drug side effect causes. The Wrap Up . Yes, definitely. This phenomenon was originally described in 1846 by the French physician Joseph Honoré Simon Beau. Nail ridges and thyroid health Whereas horizontal nail ridges reflect vitamin B1 deficiency, vertical nail ridges (like the ones below) indicate hypothyroidism. They often become more numerous or prominent with age, possibly due to variations in cell turnover within your nail. Horizontal nail splitting refers to a condition whereby the cracks occur on the sides of your nails. I was wondering can vertical ridges in my nails be a result of thyroid problems?" The Beau’s lines or deep horizontal ridges are generally signs of a grave condition. A person also may have ridges in her nails, and the white, crescent-shaped area at the base of the nails can get lighter or even disappear. Certain surgeries can cause horizontal ridges or the Beau’s lines on nails. » Review Causes of Horizontal nail ridges: Causes Causes of Horizontal nail ridges:

Fingernail Color and Clues to Your Health PositiveMed - Stay Healthy. The nails will be slow-growing, soft and have pale nail beds, according to “The Women’s Guide to Thyroid Health," by Kathryn R. Simpson 2.

Horizontal Half Moons (Lunulae) The white, horizontal, half-moon shape that appears at the base of some nail beds (most commonly on the thumb and forefinger nails) is called the lunula. These cracks are also known as Beau’s lines and they symbolize a serious underlying health condition. That’s because many signs and symptoms of thyroid disease develop on the skin, hair, and nails. These include diseases of the kidneys, liver, thyroid, heart, and even the skin. The first evidence of some types of skin cancers is Beau’s lines in the toenails. I was wondering can vertical ridges in my nails be a result of thyroid problems?" Identification.