Thinning hair in women: Why it happens and what helps

Many people think of hair loss as a male problem, but it also affects at least a third of women. But unlike men, women typically experience thinning hair without going bald, and there can be a number of different underlying causes for the problem.

“Some are associated with inflammation in the body. Some are female-pattern hair loss,” says Dr. Deborah Scott, assistant professor of dermatology at Harvard Medical School and co-director of the Hair Loss Clinic at Brigham and Women’s Hospital. But the good news is that in many cases this hair loss can be stabilized with treatment, and it may be reversible. When it’s not, there are a number of new cosmetic approaches that can help.


Understanding hair loss


The first step in dealing with thinning hair is determining what’s happening inside your body that is causing those extra strands to cling to your shoulders and your brush. Some hair loss is normal. Everyone loses hair as part of the hair’s natural growth cycle, which occurs in three stages:

  • The anagen stage refers to when a hair strand is actively growing. This stage can last anywhere from two to eight years.
  • The catagen stage is a short transition phase that lasts up to three weeks. At this point the hair has stopped growing and is preparing to shed.
  • The telogen stage is the part of the hair cycle when the hair is expelled from the follicle (the structure that produces and holds the hair). After the hair sheds, the follicle then stays dormant, typically for around three months, before a new hair starts to sprout.

Normal hair loss is highly individual. Most people have a sense of how much hair is normal for them to lose. If you suddenly notice more hair than usual falling out, you’re shedding clumps of hair, or your hair seems to be visibly thinning, it may be a sign that something is amiss, says Dr. Scott.


Underlying causes for hair loss


Numerous problems can trigger female hair loss. Some are external, such as taking certain medications, frequently wearing hairstyles that pull the hair too tight, or even a stressful event such as surgery. In other cases, thinning hair is triggered by something going on inside the body — for instance, a thyroid problem, a shift in hormones, a recent pregnancy, or an inflammatory condition.

Hair loss may also be genetic. The most common genetic condition is known as female-pattern hair loss, or androgenic alopecia. Women with this condition might notice a widening of the part at the top of the head, often beginning when a woman is in her 40s or 50s. You might experience this if you inherit certain genes from one or both parents. Hormonal shifts that occur during menopause may also spur it.

Another trigger for hair loss in women is an inflammatory condition affecting the scalp. That might be eczema, psoriasis, or a condition called frontal fibrosing alopecia, which typically causes scarring and hair loss — sometimes permanent — at the front of the scalp above the forehead.

Other common causes of hair loss include overuse of damaging hair products, or tools such as dryers and other devices that heat the hair. Underlying illness, autoimmune conditions such as lupus, nutritional deficiencies, or hormonal imbalances may also cause hair to shed.


Medications to treat hair loss


Treatment depends on the underlying cause, says Dr. Scott. Sometimes simply addressing a medical condition prompting hair loss will be enough for the hair to regrow. In other instances, a woman might consider a medication like minoxidil (Rogaine), which helps with certain types of hair loss, or another treatment to replace or regrow lost hair.

A newer option being used to treat hair loss is platelet-rich plasma (PRP) injections. For this treatment, the doctor draws your blood, divides it into its separate components, recombines the blood fluid (plasma) with a high concentration of platelets (structures in the blood that help with clotting, among other functions), and introduces the resulting preparation back into the scalp.

“The science on this isn’t totally worked out. We still don’t completely understand the mechanism behind PRP, but growth factors contained in platelets can stimulate regeneration of hair follicles and other tissues as well,” says Dr. Scott.

In addition, low-level LED laser lights have been found to be helpful in regrowing hair in some cases. It’s likely that even more treatments will be developed in the near future.


Cosmetic options for hair loss


When medical treatments fall short, women can also consider cosmetic options to make up for lost hair, such as wearing a wig. At the other end of the spectrum is hair transplantation, a surgical procedure that moves active follicles from the back of the scalp to areas where the hair is thinning. Once transplanted, the hair grows normally.

Hair transplantation is typically performed as an outpatient surgical procedure. In appropriate patients, it can be extremely successful, but it won’t work for everyone, says Dr. Scott. One drawback is the expense: it can cost thousands of dollars and is not covered by insurance. The procedure also requires recovery time. And it may not be appropriate for women who have diffuse thinning across the whole scalp. It’s more effective in treating smaller, more defined areas of balding.


Natural options for hair loss


Sulfur has been proven to lengthen the growing phase of your hair. A longer growing phase (before resting and shedding) means longer hair. Lastly, sulfur also has been linked to treating, relieving, and decreasing the occurrences of psoriasis, dandruff, eczema, and folliculitis.


MSM is known as a sulfur-rich compound with anti-inflammatory properties. There’s also some inconclusive research on its effectiveness with hair growth and retention.

According to research, MSM sulfur can form bonds essential to strengthening hair and influencing hair growth. One study tested the effect of MSM and magnesium ascorbyl phosphate (MAP) on hair growth and alopecia treatment. The test was performed on mice. Researchers applied varying percentages of MAP and MSM solutions to their backs. This study concluded that hair growth depended on how much MSM was applied in conjunction with MAP.


MSM is also available in a powder that can be added to hair conditioner.

However, since this supplement is still being researched for its hair-growth effects, the U.S. Food and Drug Administration doesn’t offer a recommended dosage of MSM.

Prior to including this compound in your daily routine or incorporating supplements into your diet, discuss risks and intake recommendations with your doctor.


If you love this info, you’ll LOVE my guide Natural Remedies for Thinning Hair!


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Disclaimer: The information in this article is for educational purposes only and should not be considered medical advice. Please consult with a healthcare professional before making any changes to your diet or lifestyle.

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