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Do you notice more strands on your pillow, or your ponytail that wraps one more time than it used to? By the time someone brings it up at an appointment, they have often been watching it for months and quietly hoping it would settle down on its own.
Hair loss almost always has a cause, and in many cases, a provider can test for it. This guide covers the most common causes of hair loss in men and women, how to tell normal shedding from a real change, and when a hair loss evaluation is worth scheduling.
Why am I losing my hair?
Common causes of hair loss include genetics, thyroid or hormone changes, low iron or vitamin D, certain medications, and shedding triggered by illness or stress. The most accurate way to determine the cause is through a medical evaluation that includes lab work, a scalp exam, and your medical history.
How Much Hair Loss Is Actually Normal?
Shedding 50 to 100 hairs a day is normal, so hair in the shower drain is not automatically a warning sign. Your hair grows in cycles, so some of it is always resting and shedding while the rest keeps growing.
Pace and replacement are what distinguish normal shedding from hair thinning. Watch for hair falling out faster than it grows back, over weeks rather than a few days.
A brief self-evaluation at home:
- Compare your part width to a photo from a year ago
- Notice if your ponytail feels thinner when you wrap it
- Look at whether your hairline or crown has shifted
The Most Common Causes of Hair Loss in Men and Women
Four causes account for the majority of what we see in practice.
- Androgenetic (pattern) hair loss. The most common cause, driven by genetics and how sensitive the follicle is to hormones. Men typically see it at the hairline and crown, while women more often see a widening part with an intact hairline.
- Telogen effluvium. Diffuse shedding that appears 2 to 3 months after a trigger, such as high stress, illness, surgery, childbirth, or rapid weight loss.
- Scalp conditions. Inflammation, seborrheic dermatitis, or infection that disrupts the follicle’s environment.
- Traction and styling damage. Tight styles, repeated heat, and chemical processing, usually showing up along the hairline and part.
The Medical Causes People Overlook
Several internal factors affect hair growth, and they are easy to miss because they rarely cause hair symptoms alone. Thyroid function is common, since both an underactive and an overactive thyroid can change hair density and texture.
Another is nutrition: iron and ferritin levels, vitamin D, and daily protein intake influence follicle cycle efficiency. Hormone changes associated with PCOS, postpartum recuperation, or perimenopause also play a part; these are evaluated through lab work with a provider rather than speculating.
Medications also belong on this list. Common prescriptions for blood pressure, mood, acne, and hormones can contribute to hair shedding. Review any suspected medication with the prescriber who ordered it, rather than stopping it on your own.
Why Two People With the Same Symptom Need Different Answers
Two people can describe the same shedding and walk out with two different answers. Pattern loss, thyroid-related shedding, and iron-related shedding all look about the same in your bathroom at home. Under a scalp exam, with lab results next to them, they look nothing alike.
Two things can also be happening at once. Genetic thinning plus low iron, for example. That overlap is usually what is behind the frustration with over-the-counter products. The product itself may be perfectly fine. Nobody ever figured out what was causing the shedding, so it was never the right fit in the first place.
Pattern loss keeps moving while you experiment, and the months you spend guessing are months the follicle does not get back. Getting a hair loss diagnosis early gives you something to act on while you still have more to work with.
When Should You Get a Hair Loss Evaluation?
Schedule an evaluation when any of the following apply to you:
- Shedding that has continued for more than three months, or sudden hair loss that came on quickly
- A noticeably smaller ponytail, receding hairline, thinning crown, or widening section
- Shedding in conjunction with exhaustion, fluctuations in weight, irregular cycles, or a new medication
- Itching, burning, flaking, redness, or tenderness on the scalp
- A family history of hair loss that seems to be moving faster in your case
Patients searching for a hair loss doctor in Allen, TX usually hit one of these points before they call.
What Does a Medical Hair Loss Evaluation Involve?
A hair loss evaluation in Allen, TX at Quality Care Internal Medicine & MedSpa starts with your full medical history and a medication review, including anything recently started or stopped. From there, our board-certified providers perform a scalp examination and pattern assessment to identify the type of loss.
Labs are ordered as indicated and may cover thyroid function, iron and ferritin, and vitamin D, among other markers. We also talk through nutrition, stress, and lifestyle factors before building a plan around what the findings show.
What Usually Happens After the Evaluation?
Your plan follows your findings. For some patients, that means treating an underlying condition; for others, it means coordinating a medication adjustment with the prescribing clinician or correcting a nutritional gap. If the work-up points that direction, we can also discuss in-office scalp and hair restoration options, including platelet-rich plasma (PRP), which is used off-label for hair restoration.
Since hair grows in cycles, most patients notice changes in three to four months, and we monitor their progress during follow-up appointments. Individual results differ, and consistency over months tends to have a greater impact than any one step. We use scheduled follow-ups and photo tracking to monitor changes.
Common Questions About Hair Loss
Is hair loss irreversible?
Depending on the cause, yes. While pattern loss is usually managed over time rather than resolved, shedding associated with a reversible factor often improves once you address that factor.
Can stress alone cause hair to fall out?
Stress is a recognized trigger for telogen effluvium, which usually appears a couple of months after the stressful period.
Do hair supplements help?
Supplements can support hair growth when a specific deficiency exists, which is one reason lab testing comes before a supplement plan.
Stop Guessing and Get a Clear Answer
You do not have to keep tracking this alone or sort through conflicting advice online. A proper hair loss diagnosis in Allen, TX gives you something concrete to work from, and most patients feel better simply knowing what is behind the change. Concerned about hair loss? Schedule a hair loss evaluation in Allen, TX, to identify possible causes and discuss your next steps.
