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What Causes Hair Loss

Medical Conditions That Cause Hair Loss

Hair loss is generally thought to be caused by a genetic predisposition to the hormone called DHT. However, there are some external factors that can also cause temporary hair loss like harsh dyes, stress and even pollution. In this article, we will be going over some health conditions that can cause hair loss. 

Thyroid Disorders

Hyperthyroidism and hypothyroidism have been known to cause hair loss. The loss is diffuse and affects the entire scalp. Some hair loss sufferers may misdiagnose this type of hair loss as Diffused Unpatterned Alopecia (DUPA). Hair loss becomes apparent after the onset of thyroid disease. 


Researchers suspect hair loss could be among one of the many causes of hair loss, some believe that it is due to hormonal imbalances. There is a clear correlation between hair loss and hypertension, but not everyone is convinced that hypertension directly causes hair loss. 

Rheumatoid Arthritis 

Individuals with autoimmune conditions such as Rheumatoid Arthritis (RA), have been known to experience hair loss. However, the hair loss is typically a result of the treatment rather than the disease. One of the medications known for causing hair loss as a side effect is called Methotrexate. Methotrexate is one of the most commonly prescribed drugs for RA. The reason the drug causes hair loss is because it stops cells from growing, and these cells include hair follicles cells. 

Consult With A Physician

Before you start blaming a variety of ailments for your hair loss, it is essential to get properly diagnosed by a physician. Even if you happen to have one of the aforementioned conditions, you may still be suffering from androgenic alopecia (genetic hair loss).

Genetic hair loss is triggered by the hormone DHT. DHT binds to androgen receptors in vulnerable hair follicles and gradually begins to shrink the hair follicles until they no longer grow. This process is called miniaturization or thinning. Anyone with a genetic predisposition to male pattern baldness can be affected by the condition. There is a myth being spread that hair loss can only be inherited from the maternal lineage-this is false.


Hair loss can be caused for several reasons however, achieving a proper diagnosis is vital to treating the hair loss. Unfortunately, hair loss isn't a subject that many physicians know very well, even dermatologists may know very little. Hair loss experts are hair transplant surgeons, because they have been dealing with various surgical and non-surgical treatments in their practice and focus solely on treating hair loss.