Hair Loss

Hair loss, medically referred to as alopecia, is a common complaint among patients visiting the dermatologist and can be the source of significant physical and psychological stress.  It is important to review some basic facts about alopecia in order to better understand the work-up and treatment options available for the type of hair loss you may be suffering from.

Hair grows in three phases: anagen (growth phase), catagen (regression phase), and telogen (resting phase). At any given time, about 83-85% of hairs are in anagen, 1-2% are in catagen, and about 10-15% are in telogen.  The hair on the scalp is pre-programmed to shed approximately 100 hairs per day and to grow about 1cm/month.  The number of times per week that you wash or brush your hair does not affect this growth and shedding cycle.

haircycle2At the most basic level, alopecia can be categorized as either scarring or non-scarring. The difference between these two entities is that scarring alopecia causes permanent damage to the hair follicle, which often results in irreversible hair loss. In non-scarring alopecia, follicular integrity is maintained and there may be potential for regrowth. Luckily, the non-scarring forms of alopecia are far more prevalent overall.

If you feel you are suffering from increased shedding and/or thinning, there are several important things you can do at home and in conjunction with your primary care physician that may help stop, slow, or reverse the hair loss process.


Shedding 100 hairs per day is normal, more may be a sign of telogen effluvium.

1. If your hair loss or shedding is widespread, particularly if it is abrupt, you may be suffering from a condition called telogen effluvium. This is a period of increased shedding that usually occurs in the weeks to months following a stress on the body. Common causes include pregnancy, new diets, some medications, recent illness or hospitalization, and emotional stress or trauma. This type of hair loss is reversible in almost all cases and your scalp density will return to normal usually within about 1 year. Check your medications (both over the counter and prescription) and discuss them with your primary care physician to see if any may be contributing to your hair loss.  Never stop any prescription medication without first consulting with a physician.

2. If you cannot readily identify any of the potential causes of your new onset shedding or thinning, particularly if you are feeling more tired, your primary care doctor may want to run some common blood tests to assess your thyroid function, your iron stores, your red blood cell count, and your vitamin D level. If one or more of these are abnormal, oral medications can be given to fix the deficiency and your hair may return to its baseline.  Before you see your doctor, consider supplementation with Vitamin D if you get very little sun exposure.  In some patients Biotin, an over the counter vitamin, can help patients with hair loss as well.

Patterns of androgenetic alopecia in men and women

Patterns of androgenetic alopecia in men and women

3. If your lab studies are normal, you may be suffering from the most common type of non-scarring alopecia, androgenetic (or male/female pattern) alopecia (AGA). This condition can affect both men and women and can start as early as adolescence. Despite many myths regarding the inheritance pattern, AGA can be passed down from any family member or it can present in a patient with absolutely no family history.  AGA typically presents in a classic pattern with increased loss at the temples and crown for men and an increased loss of the frontal scalp for women. Unlike men, women generally do not go bald. The diagram below shows the common pattern of loss found in males and females.

Androgenetic Alopecia in a female patient

Androgenetic Alopecia in a female patient

The gold standard first line treatment for AGA is Rogaine ® (minoxidil).  Rogaine ® is sold over-the-counter in a 2% solution (for women) and 5% solution or foam (for men). Women can begin using the 5% solution or foam once daily or the 2% solution twice daily. Men should use the 5% twice daily for optimal results. Rogaine ® should be used for a full 4-6 months before the true efficacy can be evaluated. Rogaine ® should not be used in pregnant women or in women who are breastfeeding.  In addition, a device called the Hairmax Laser Comb has been FDA approved for AGA, though strong evidence of its helpfulness is lacking.

4. If you or your child has coin shaped or discrete patches of hair loss, the diagnosis may be a condition known as alopecia areata. This is a type of auto-immune related non-scarring hair loss that should be evaluated by a dermatologist. Treatment options are available and range from topical creams or solutions to cortisone injections to oral medications in more extreme cases.  Spontaneous remission may also occur. For more information visit:

Alopecia Areata on the scalp of a female patient

Alopecia Areata on the scalp of a female patient

If none of the above pertains to your type of hair loss, you may need to be evaluated by a dermatologist. Other warning signs that should prompt you to make a dermatology appointment include:

  • Rapid onset and progression of hair loss with visible patches of bald scalp
  • Areas in the scalp where the hair has fallen out and the hair follicles can no longer be seen or appear scarred.
  • Loss of hair in other parts of your body in addition to your scalp including your brows, lashes, and/or body hair.
  • Increased itching, pain, scale or redness in the areas of hair loss.
Alopecia Areata in the beard area

Alopecia Areata in the beard area

These signs may indicate that you are potentially suffering from a scarring type of alopecia. While the scarring alopecias are generally uncommon, the emotional and psychological impact can be very distressing. The main goal for treatment of all scarring alopecias is to quell disease activity while preserving any remaining healthy hair follicles. Treatment options span from topical and systemic medications to more involved discussions about maximizing camouflage techniques.  Please see the list provided at the bottom of this blog for some recommendations for brow enhancement/ restoration and hair pieces (also called cranial prostheses). There are a multitude of resources and support groups available at The Cicatricial Alopecia Research Foundation.  If you suspect you have scarring alopecia, make an appointment with a dermatologist.

Unfortunately, non-scarring types of alopecia, particularly androgenetic alopecia (AGA), or the unavoidable decrease hair density associated with advanced age, are considered common cosmetic concerns by most major insurance companies particularly because the prevalence of hair loss is so high.

Lichen planopilaris, a scarring form of alopecia

Lichen planopilaris, a scarring form of alopecia

Because of this, the cost of consultation and treatment for non-scarring hair loss often is the responsibility of patients (and not their insurance companies)  unless it is alopecia areata as discussed above.  If the suggestions we have discussed in this post and evaluation by your primary care doctor have not succeeded in improving your alopecia, your dermatologist can help investigate the cause of your hair loss and will create an individualized treatment plan that best suits you and your lifestyle. Hair loss, no matter what the magnitude, can be life altering. At Krauss Dermatology, we will work with you to help minimize its impact.

Resource List

Brow and Lash Restoration

18 Newbury Street, 5th floor
Boston, MA 02116

Contact person: Julie Michaud

Brow Enhancement Product


Hair Replacement/ Cranial Prostheses

The Salon at 10 Newbury
10 Newbury Street
Boston, MA 02116
Contact person: Patricia Wrixon

PK Walsh
75 Second Avenue
Needham, MA 02630

Patricia and Company Cosmetic Solutions
534 Main Street, #4
Weymouth, MA 02190
Contact person: Patricia Queeny

Treatment options for Hair Loss

Connect with Us on

Brilliant Connections Shop

Keep up to date on the latest from Krauss Dermatology

Connect with us on Facebook and Follow us on Twitter and Instagram

Contact Us Today

By submitting the contact form, you agree to the Terms of Use:

Communications through our website or via email are not encrypted and are not necessarily secure. Use of the internet or email is for your convenience only, and by using them, you assume the risk of unauthorized use.

By submitting your email address and/or telephone number you are providing Krauss Dermatology authorization to contact you about appointments, information and special offers in the practice.

By submitting a form you hereby agree to hold Krauss Dermatology, its doctors and affiliates, harmless from any hacking or any other unauthorized use of your personal information by outside parties.

ATTENTION: If your communication is of an urgent or confidential nature, do not use this form and call us at 781.416.3500