Hair loss is one of the most common reasons patients come to see us, and one of the most personal. Whether it shows up as a widening part, a receding hairline, more hair in the shower drain, or a sudden smooth patch, noticing it can be upsetting for women and men alike.
The good news is that most hair loss has an identifiable cause, and many causes respond well to treatment, especially when we start early. As dermatologists, we are physicians trained specifically in the skin, hair, and nails, and the scalp is skin. Our goal at every hair loss visit is simple: find out exactly why you are losing hair, then build a plan that fits you.
What Is Hair Loss?
The medical term for hair loss is alopecia, and it is not one condition but many. To understand it, it helps to know how hair normally grows.
Every hair on your scalp moves through a repeating cycle:
Growth phase (anagen): The active phase, which lasts several years. Most of your scalp hair is in this phase at any given time.
Transition phase (catagen): A short phase of a few weeks when the follicle shrinks and growth stops.
Resting and shedding phase (telogen): A phase of roughly three months, after which the hair falls out and a new one begins to grow in its place.
Shedding some hair every day is completely normal; most people lose around 50 to 100 hairs daily. Hair loss becomes a concern when this cycle is disrupted: when more hairs than usual are pushed into the shedding phase, when follicles gradually shrink and produce finer hairs, or when inflammation damages the follicle itself.
Common Types of Hair Loss
The right treatment depends entirely on the type of hair loss, which is why diagnosis comes first. These are the types we see most often:
Androgenetic alopecia (male or female pattern hair loss): The most common type, driven largely by genetics and hormones. In men it often appears as a receding hairline or thinning at the crown. In women it usually shows as a widening part and overall thinning on top, with the front hairline preserved.
Telogen effluvium: Sudden, diffuse shedding that typically begins two to three months after a stressor on the body, such as pregnancy and childbirth, illness, high fever, surgery, rapid weight loss, a new medication, or major emotional stress. It is often temporary once the trigger resolves.
Alopecia areata: An autoimmune condition in which the immune system attacks the hair follicle, usually causing round, smooth patches of hair loss. It can also affect the eyebrows, eyelashes, and beard.
Traction alopecia: Hair loss from repeated tight pulling, such as tight ponytails, braids, extensions, or weaves. Caught early, it can improve; prolonged tension can lead to permanent loss.
Scarring alopecias: A group of conditions, including frontal fibrosing alopecia and lichen planopilaris, in which inflammation destroys the follicle and replaces it with scar tissue. Because this loss can be permanent, early diagnosis and treatment are especially important.
Many patients have more than one type at once, for example pattern hair loss that is unmasked by a bout of shedding. Sorting this out is a key part of your visit.
How We Diagnose Hair Loss
A thorough evaluation is the foundation of every successful hair loss plan. At your visit, we will:
Take a detailed history: When the loss started, whether it is shedding or thinning, your family history, recent illnesses, pregnancies, stressors, diet, medications, and your hair care routine.
Examine your scalp and hair: We look at the pattern and density of hair loss, the health of the scalp, and signs of inflammation or scarring. A hair pull test can show whether active shedding is occurring.
Use trichoscopy: A magnified, illuminated view of the scalp lets us see changes in hair shaft size and follicle openings that are invisible to the naked eye.
Order lab work when appropriate: Blood tests can check for contributors such as low iron stores, thyroid problems, vitamin deficiencies, or hormonal imbalances.
Perform a scalp biopsy if needed: When the diagnosis is unclear or a scarring alopecia is suspected, a small biopsy gives us a definitive answer.
By the end of this process, you will understand what type of hair loss you have and why it is happening.
Building a Comprehensive Treatment Plan
There is no one-size-fits-all solution for hair loss. The most effective plans combine several approaches that work together, tailored to your diagnosis, your goals, and your health history. A comprehensive plan often includes the following layers.
1. Address the underlying cause. If labs reveal low iron, a thyroid issue, or another contributor, correcting it is the first step. For telogen effluvium, identifying and resolving the trigger often allows hair to recover on its own. For traction alopecia, adjusting hairstyles to reduce tension is essential.
2. Calm inflammation. For alopecia areata and scarring alopecias, stopping inflammation protects the follicles. This may include topical corticosteroids, corticosteroid injections into affected areas of the scalp, or oral anti-inflammatory medications such as doxycycline or hydroxychloroquine.
3. Support and stimulate growth. For pattern hair loss, medications can slow thinning and help regrow hair:
Minoxidil: Available as a topical solution or foam, and increasingly prescribed as a low-dose oral medication, minoxidil prolongs the growth phase and enlarges shrinking follicles.
Finasteride and dutasteride: These medications, used orally or topically, reduce the hormone DHT that drives follicle shrinkage in pattern hair loss.
Spironolactone: Often helpful for women with female pattern hair loss, particularly when hormones play a role.
4. Add in-office regenerative treatment. Platelet-rich plasma (PRP) uses growth factors concentrated from your own blood, injected into the scalp to support the follicles and encourage thicker, fuller growth. PRP is typically given as an initial series of treatments followed by periodic maintenance, and it pairs well with medical therapy.
5. Consider restoration when appropriate. For some patients with stable pattern hair loss, hair transplantation can restore coverage in areas where follicles are no longer active.
6. Protect and maintain. Gentle hair care, a healthy scalp, balanced nutrition, and consistency with your regimen all help preserve your results over time. Hair loss treatment is usually a long-term commitment, and stopping treatment often allows the loss to resume.
What Results Can You Expect?
Hair grows slowly, so patience is part of every plan. Because of the hair cycle, most treatments take about three to six months before changes are noticeable, and full results are usually assessed at around twelve months. Some patients notice a temporary increase in shedding when starting minoxidil; this is often a sign that follicles are cycling into a new growth phase.
We track progress with standardized photographs at follow-up visits so we can measure improvement objectively and adjust your plan as needed. Results vary from person to person, and the earlier treatment begins, the more hair there is to preserve.
To see what is possible, visit our hair rejuvenation before and after gallery, featuring results from patients treated in our office.
When to See a Dermatologist
We recommend scheduling an evaluation if you notice any of the following:
Shedding that is heavier than usual or lasts more than a few months
A widening part, thinning at the crown, or a receding hairline
Round or patchy areas of hair loss
Itching, burning, tenderness, redness, or scaling on the scalp
Hair loss along with other symptoms, such as fatigue or changes in your menstrual cycle
Scalp symptoms like burning or tenderness deserve prompt attention, since they can signal an inflammatory or scarring condition where early treatment makes the biggest difference.
Take the First Step
Hair loss can feel overwhelming, but you do not have to figure it out alone. Our team of board-certified, fellowship-trained dermatologists has years of experience diagnosing and treating every type of hair loss. Learn more on our hair loss (alopecia) page, browse our before and after results, or schedule a consultation with us in Arlington. You can also reach our office at (703) 881-9117.
This article is for general educational purposes and is not a substitute for a personal medical evaluation. Please speak with your dermatologist before starting or changing any treatment.
