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Why Is My Hair Thinning: 9 Causes

January 11, 2021

6 Min read

Losing hair is no laughing matter, especially when it comes out of nowhere when you’re not expecting it. If you’re wondering why your hair is thinning, it could be a couple of different things. There are a lot of ways to treat hair loss, so don’t stress! Let’s jump right in.

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How To Tell If You’re Losing Hair

The first thing you should figure out is if your hair loss is abnormal. Humans usually lose about 50-100 strands of hair a day, which is completely natural due to the hair growth cycle. But if you’re noticing a significantly larger number of strands in your hairbrush or falling out in the shower, there may be cause for concern. 

Hair loss can happen in a lot of different ways, depending on the cause. Sometimes it gradually thins on the top of your head or arrives as circular patchy spots. It could also be more sudden than that, falling out in clumps. This can be pretty alarming.  If you start noticing this kind of hair loss, you should talk to your doctor about an underlying medical condition you might have.

Tight Hairstyles

If you wear a lot of tight ponytails or braids, they could be pulling on your scalp. These hairstyles create unnecessary friction on your follicles, causing the hair strands to weaken and fall out. This usually happens after a long period of wearing the same hairstyle, which is common for athletes who keep their hair tied up (we’re looking at you, ballerinas.)

This kind of pulling can cause a condition known as traction alopecia. This is a term used for hair loss that’s caused by consistent hair pulling. This condition can be stopped by not pulling your hair back so tightly. Traction alopecia can also cause an itchy scalp, soreness, redness, and scaling. 

If you are going to wear a tight hairstyle, make sure you give your hair a long break before and afterward. Your scalp will definitely thank you.

Hormonal Changes

Another cause of hair thinning is your body’s hormones changing. This can happen after a woman gives birth and her estrogen levels decrease. This is usually temporary and will go away after the first year. 

You may also experience hair loss if you have a thyroid imbalance. This can influence the hair growth cycle and alter it. It can happen with both an overactive or an underactive thyroid because of its role in hair development. If your thyroid isn’t working properly, it’ll be harder for you to grow new hair to replace the hair that you naturally lose. 

Menopause in women can also trigger hair thinning/loss. During this time, your body decreases its production of estrogen and progestins. This also means your sensitivity to DHT might increase, which can affect your hairline.


Certain medications can end up leading to hair loss as a side effect. This includes blood thinners, acne medication, antidepressants, and cholesterol-lowering medications. If you think this is why you are losing hair, reach out to your doctor and ask them about your medication. You may want to discuss switching to a different form to improve your hair health.

Nutritional Deficiencies

Your hair might be falling out because you aren’t eating what your body needs. If your diet doesn’t have enough protein or vitamins, it could cause a lot of unhealthy shedding. Make sure you eat foods like eggs, beans, and meat, as well as lots of leafy greens. Well-rounded diets can improve more than just your hair! 

You can talk to a nutritionist if you think that your diet could be better. Tell them what your current diet is and see if they can offer you any suggestions. 


Hereditary-pattern baldness is one of the most common causes of hair loss for people. It’s actually a natural condition that’s caused by genetics and aging. As you get older, your hair turns grey and falls out. 

This kind of hair loss usually starts with thinning and then progresses to hair loss near the middle or front of the scalp, also known as a receding hairline. Some people have early-onset hereditary baldness, where they start to lose hair in their 20s or 30s. Fortunately, there are solutions like hair transplants that can help people with this condition.


Here’s the thing–we don’t want to tell you that stress is making your hair fall out,  causing you to fall into a vicious stress cycle, but, some types of hair loss can be due to stress Commonly called telogen effluvium, this kind of hair loss isn’t permanent, but it can be pretty sudden. This type of hair loss forces your hair into the telogen phase of growth. This makes your hair fall out without growing new hair to replace it. 

You’ll probably start to notice this hair loss after about two or three months after the initial stressor occurred. If you’re feeling overly stressed, there are several things you can try. Start with decompressing after your workday with a bath and some essential oils. If that doesn’t work, make sure that you’re getting enough sleep every night. If the stress is more serious, consider talking to a psychologist who can help you manage it.

Fast Weight Loss

Sometimes diets can cause hair loss in certain people. Similarly to stress, this type of hair loss happens through telogen effluvium. When you cut your calories by a significant amount, this can confuse your body into thinking that it’s malnourished. When this happens, your body can go into survival mode and use nutrients that would typically go to your hair, triggering hair loss. So be careful when you’re losing weight and take it slow. It’s a good idea to combine diet and exercise for a healthy lifestyle.

Product Buildup

When you use products like dry shampoo or mousse, they can remain in your hair after you wash it. This can create build-up, blocking your hair follicles from being able to produce new hair. This means that as your hair naturally falls out, there is no hair replacing it. To fix this problem, you should get a scalp mask that can exfoliate your hair and get rid of grime. Our Pre-Shampoo Scalp Mask has concentrated ingredients to purify and restore balance to your strands without leaving residue behind.

Wrapping Up

So, all of that being said, what can be done? Well, if it’s not hereditary or hormonal, the answer could be committing to changing your lifestyle. This could mean eating differently, reducing stress, using different hair products, or avoiding certain hairstyles. Whatever it is, you should try to isolate the cause by slowly changing your daily routine.


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The Prose Staff is here to share the best hair tips and tricks to help you achieve all your hair goals with custom hair care, breakthrough innovation and more

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