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10 Top Causes of Hair Loss

What are the most common causes of hair loss? House Call Doctor weighs in with the top ten causes.

By
Sanaz Majd, MD,
June 29, 2017
Episode #242

Page 1 of 2

For both women and men, hair loss can drive us to tears. Although the physical symptoms can range from serious to benign, the cosmetic problem is bound to leave us devastated.

So what can cause hair to suddenly happen? 

Top 10 Causes of Hair Loss

Thyroid Disorder: The thyroid gland, which sits in the middle of the neck, regulates our metabolism and more. So when it shuts down and produces less thyroid hormone, it also shuts down everything else. This causes us and our bodies to slow down. We can become fatigued and depressed, our gut can slow down causing constipation, our skin can dry, and our hair can become brittle and/or fall out.

Traction: Believe it or not, tension on the hair shafts, from tight pony tails or braids can strain our hair follicles and cause hair loss. It seems too easy to be true. But nevertheless, if you tend to wear your hair up, let it loose for a change.

Stress: We cannot blame stress for every little medical problem. However, this is one is real.  Experiencing a traumatic stressful event can cause hair loss 3-6 months down the line. However, if it is truly from stress, it is reversible. Therefore, the hair that is lost will eventually regrow once the stressor is removed.

Medications: Chemotherapy, anticonvulsants, hormones, and lithium are some of the common hair loss culprits. As are some other antihypertensive and cardiac drugs, such as amiodarone (an antiarrhythmic), captopril, or propranolol (anti-hypertensives), and cholesterol lowering drugs.

Chronic Iron DeficiencyMenstruating women compromise the greatest risk for iron deficiency, which is manifested by anemia. A simple blood test can detect this one. Strict vegetarians who seriously lack iron in their diet can also become anemic. And we always worry about those over the age of 50 who lose microscopic but chronic amounts of blood in their stool.

Autoimmune Disorders:  Lupus is a prime example of an autoimmune disorder that can wreak havoc on the scalp. Autoimmune disorders are those in which the body produces specific proteins that attack various body components, such as the joints in Rheumatoid Arthritis, the pancreas in Type I Diabetes, and the thyroid in Graves Disease. People with some autoimmune disorders can also erroneously produce proteins that attack the hair follicles, thereby causing alopecia. These disorders, however, tend to cause distinct patches of hair loss, rather than diffuse all-over loss.

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