Hair Shedding When Brushing

Hair shedding when brushing refers to the visible loss of hair strands that occurs as you run a brush or comb through your hair. This process is a normal part of the hair growth cycle, where old hairs are released to make way for new growth. The scalp contains thousands of hair follicles, each operating on its own timeline, so it is common to see some hair come out during daily grooming.

The hair growth cycle consists of three main phases: anagen (growth), catagen (transition), and telogen (resting/shedding). Most scalp hair is in the anagen phase, while a smaller percentage is in the telogen phase, ready to shed. When brushing, these telogen hairs are often dislodged, which is why you may see them collect in your brush or comb. This process is not usually a cause for concern unless the amount of hair lost increases significantly or is accompanied by other symptoms.

Normal Shedding vs Excessive Shedding

Normal hair shedding is a sign of a healthy hair cycle. On average, losing up to 100 hairs per day is considered typical for most healthy individuals. These hairs are usually in the telogen phase and are naturally released from the scalp. The amount of hair you see in your brush can vary depending on factors such as hair length, washing frequency, and styling habits.

Excessive shedding, on the other hand, may be noticeable if you find large clumps of hair in your brush, on your pillow, or in the shower. If you are losing significantly more than 100 hairs per day, or if your hair feels thinner and less dense over time, this could indicate a condition such as telogen effluvium. Excessive shedding can be temporary or persistent, depending on the underlying cause. It is important to distinguish between normal and excessive shedding to determine if further evaluation is needed.

Causes of Hair Loss When Brushing

Hair loss when brushing can be triggered by a variety of factors. While normal shedding is expected, certain conditions and external influences can increase the amount of hair you lose. Understanding these causes can help you identify whether your hair loss is within the normal range or if it may require medical attention.

Common causes include stress, nutritional deficiencies, hormonal changes, illness, medications, and improper hair care practices. Sometimes, the way you brush or detangle your hair can also contribute to increased shedding or even breakage. Among medical conditions, telogen effluvium is a leading cause of noticeable hair shedding, especially after a physical or emotional stressor.

Telogen Effluvium and Hair Shedding

Telogen effluvium is a temporary form of diffuse hair loss that occurs when a significant number of hair follicles prematurely enter the telogen (resting/shedding) phase. This shift is often triggered by a stressor or change in the body, such as illness, surgery, childbirth, rapid weight loss, or emotional trauma. As a result, you may notice a sudden increase in hair shedding, particularly when brushing or washing your hair.

In telogen effluvium, up to 70% of hair that was previously in the growth phase can shift into the shedding phase, leading to the loss of up to 300 hairs per day. This condition typically becomes noticeable two to three months after the triggering event. The shedding is usually diffuse, affecting the entire scalp rather than specific patches.

Brushing and Other Triggers

While brushing itself does not cause hair to fall out from the root, aggressive or improper brushing can increase the amount of hair you see in your brush. Brushing can dislodge hairs that are already in the telogen phase, but excessive force or using the wrong type of brush can also cause hair breakage. This breakage is different from natural shedding and can make hair appear thinner or frizzier.

Other triggers for increased hair shedding include harsh chemical treatments, frequent use of heat styling tools, tight hairstyles, and scalp conditions. Nutritional deficiencies, such as low iron or protein intake, and hormonal imbalances can also contribute to hair loss when brushing. Identifying and addressing these triggers can help reduce unnecessary shedding and support overall hair health.

Detangling Shedding: What to Expect

Detangling is an essential part of hair care, especially for those with longer or textured hair. During detangling, it is normal to see some hair come out, as this process helps remove shed hairs that have not yet fallen away from the scalp. The amount of hair lost during detangling can vary based on how often you detangle, your hair type, and the tools you use.

If you detangle your hair less frequently, you may notice a larger amount of hair shedding in one session. This is because shed hairs accumulate between detangling sessions and are released all at once. Using gentle techniques and appropriate tools, such as a wide-tooth comb, can help minimize unnecessary breakage and reduce the risk of pulling out healthy hairs.

Breakage vs Shedding: How to Tell the Difference

Understanding the difference between breakage and shedding is important for assessing hair health. Shedding refers to the natural release of whole hairs from the scalp, usually with a small white bulb at the root. Breakage, on the other hand, occurs when the hair shaft snaps somewhere along its length, often due to physical or chemical damage.

Shedding is a normal part of the hair cycle, while breakage can be a sign of weakened or damaged hair. Recognizing the signs of each can help you adjust your hair care routine and address any underlying issues.

How to Examine the Hair Shaft

To determine whether you are experiencing shedding or breakage, examine the hairs that come out during brushing or detangling. Shed hairs typically have a small, rounded white bulb at one end, which is the root that has naturally detached from the follicle. These hairs are usually longer and represent the full length of your hair.

Broken hairs, in contrast, lack the white bulb and are often shorter or have uneven, jagged ends. Examining the hair shaft closely can help you identify the cause of your hair loss and guide you toward the right solutions. If you notice a high proportion of short, broken hairs, it may be time to adjust your hair care practices or consult a professional.

Signs of Hair Breakage

Hair breakage often presents as shorter, uneven hairs that may stick out from the rest of your hair. You might also notice split ends, frizz, or a rough texture along the hair shaft. Breakage is commonly caused by excessive heat styling, chemical treatments, tight hairstyles, or rough handling during brushing and detangling.

If you observe these signs, consider reducing the use of heat tools, avoiding harsh chemicals, and switching to gentler hair care methods. Regular conditioning and protective styling can also help strengthen the hair shaft and minimize breakage.

Does the Type of Brush or Comb Matter?

The type of brush or comb you use can significantly impact the amount of hair shedding and breakage you experience. Brushes with harsh or tightly packed bristles can tug at the hair, increasing the risk of breakage and pulling out more shed hairs. Choosing the right tool for your hair type and texture is essential for gentle detangling and overall hair health.

For those experiencing increased shedding or hair loss, using a brush or comb designed to minimize tension on the hair shaft can make a noticeable difference. Wide-tooth combs, soft-bristle brushes, and detangling tools are often recommended for reducing mechanical stress on the hair.

Using a Wide-Tooth Comb

A wide-tooth comb is especially beneficial for detangling wet or textured hair. Its widely spaced teeth allow for gentle separation of strands, reducing the risk of snagging and breakage. Using a wide-tooth comb can help distribute natural oils from the scalp along the hair shaft, promoting shine and moisture retention.

To use a wide-tooth comb effectively, start detangling from the ends of your hair and work upward toward the roots. This technique helps prevent unnecessary pulling and minimizes the amount of hair lost during detangling. Incorporating a wide-tooth comb into your routine can support healthier hair and reduce the appearance of excessive shedding.

Tips to Reduce Shedding When Brushing

Gentle hair care practices can help minimize unnecessary shedding and breakage during brushing. Start by using a brush or comb suited to your hair type, such as a wide-tooth comb for detangling. Always begin brushing from the ends and gradually work your way up to the roots to avoid tugging and pulling on the hair shaft.

Avoid brushing wet hair unless you are using a tool designed for wet detangling, as hair is more fragile when damp. Incorporate regular conditioning treatments to strengthen the hair and reduce friction during brushing. Limiting the use of heat styling tools and harsh chemical treatments can also help maintain the integrity of your hair and reduce breakage.

Frequently Asked Questions

How much shedding is normal?

It is normal to shed up to 100 hairs per day as part of the natural hair growth cycle. This amount can vary depending on hair length, washing frequency, and individual factors. If you notice a sudden increase in shedding or significant thinning, it may be worth consulting a healthcare professional.

Can brushing too hard cause hair loss?

Brushing too hard can cause hair breakage, which is different from natural shedding. While brushing does not cause hairs to fall out from the root, excessive force or improper technique can snap the hair shaft, leading to shorter, broken hairs and a frizzy appearance. Using gentle brushing methods and the right tools can help prevent breakage.

Does detangling wet hair increase shedding?

Detangling wet hair can increase the risk of breakage, as hair is more fragile when damp. However, using a wide-tooth comb and applying conditioner can help minimize damage. Wet detangling may also release shed hairs that have accumulated, making it seem like more hair is coming out at once. Gentle techniques are key to reducing both shedding and breakage during detangling.

How do I know if my shedding is telogen effluvium?

Telogen effluvium typically presents as diffuse hair shedding across the scalp, often noticed two to three months after a physical or emotional stressor. If you are losing more than 100 hairs per day or see a sudden increase in hair loss, especially after a stressful event, telogen effluvium may be the cause. A healthcare provider can help confirm the diagnosis and guide appropriate management.

Is hair falling out always a sign of illness?

Not all hair shedding is a sign of illness. Daily shedding is a normal part of the hair growth cycle. However, excessive or sudden hair loss can be associated with underlying medical conditions, nutritional deficiencies, or hormonal changes. If you are concerned about the amount of hair you are losing, it is best to seek medical advice for a proper evaluation.

What is the difference between breakage and shedding?

Shedding involves the loss of whole hairs from the scalp, usually with a white bulb at the root, and is a normal part of the hair cycle. Breakage refers to the snapping of the hair shaft along its length, resulting in shorter, uneven hairs. Breakage is often caused by physical or chemical damage, while shedding is a natural process.

Will changing my brush help with shedding?

Switching to a gentler brush or a wide-tooth comb can help reduce breakage and minimize unnecessary hair loss during brushing. The right tool can make detangling easier and less damaging, especially for those with fragile or shedding-prone hair.