What Are the Common Causes of a Thin Hairline?

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  • Written By: Erik J.J. Goserud
  • Edited By: PJP Schroeder
  • Last Modified Date: 26 March 2020
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A thin hairline can be caused by a number of things and can result in a great amount of mental stress and anxiety. Identifying the particular cause may help to figure out which treatment method is best. There are many options for those suffering from thinning hair, including surgery, shampoos and other products, baseball caps, and wigs. The most common causes of a thin hairline are genetics, poor hair care, diet, and medical procedures.

On the hereditary side, a thin hairline can be caused by hormone levels, scalp disorders, or protein synthesis malfunction. Clinically known as alopecia, hair loss affects men and women worldwide. Iron deficiencies, which are sometimes genetic in nature, can also contribute to the loss or thinning of hair. Hair can also fall out as life progresses as a standard characteristic of aging.

Poor hair care can also be to blame for a thin hairline. Sometimes, a person may be predisposed to a great head of hair, but improper hygiene or management can cause a plethora of problems. Keeping hair too tight or constantly pulling on hair may cause the thinning process or alopecia to be expedited. Constant brushing, too little or too much chemical treatment, and any acts that cause stress to the hair can all play into having a thin hairline. Consulting a professional like a hair dresser or hair loss specialist may help give an idea of what healthy hair treatment is like.


Dietary restrictions may also factor into an unhealthy head of hair. Human hair is composed of many proteins that are necessary to be replenished for an ongoing great head of hair. If a person is not getting adequate protein, iron, or other nutrients, he or she may see the visible results in hair loss. There are supplements and dietary strategies that can ensure a person is getting the necessary nutrients needed for a healthy head of hair.

Sometimes, hair loss or the thinning of hair may be an unavoidable obstacle to overcome due to a medical treatment. Cancer, for example, sometimes requires the use of chemotherapy treatment for an increased rate of recovery. This intense chemical treatment regimen can negatively affect many of the healthy tissues of the body, the hair being commonly compromised in the process. When a choice comes between a thin hairline and sustaining of life, most people accept this negative implication.

If the bad news is that a thin hairline is common and sometimes not desired, the good news is that there are treatment plans. If the habits causing a thin hairline are corrected, then the hair can usually recover. If this is not possible, there are always surgical and other aesthetic measures that may improve the look of a person's hair.



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