A bald spot is a shape, not a diagnosis.
Smooth, scaly, broken, inflamed and scar-like patches can look similar at a glance. The surface, border, symptoms and remaining follicular openings determine the next step.
Localized hair loss has several causes that require different treatment.
Alopecia areata often creates smooth non-scarring patches. Tinea capitis can create scale and broken hairs. Traction and hair pulling create force-related patterns, while lichen planopilaris and other scarring diseases may permanently damage follicles.
Advanced pattern loss can also create an apparently bald crown. Diagnosis should precede antifungals, steroids, supplements or stimulants.
Openings predict potential
Visible follicular openings suggest follicles remain; absent openings raise concern for scarring.
Broken hairs tell a story
Uniform short stubs, black dots or irregular lengths may point toward infection, pulling or traction.
Symptoms matter
Pain, burning, tenderness, pus and heavy scale redirect the differential.
Location adds context
Margins, crown, beard, brows and occipital scalp each have different common causes.
A small inflamed patch can be more urgent than a larger smooth one.
Size alone does not establish severity. Active scarring inflammation can destroy follicles at a narrow border, while a smooth alopecia-areata patch may retain regrowth potential.
Trichoscopy, fungal testing and selected biopsy convert visual clues into a defensible diagnosis.
Let the scalp surface narrow the possibilities.
These are pattern clues, not self-diagnoses.
- Smooth round patch: consider alopecia areata
- Irregular short hairs: consider pulling
- Margin breakage: consider traction
- Crown miniaturization: consider pattern loss
- Visible openings: non-scarring remains possible
- Scale with broken hairs: consider fungal infection
- Pustules or crust: consider inflammatory or infectious disease
- Burning with perifollicular scale: consider scarring alopecia
- Shiny surface: possible follicle destruction
- Eyebrow loss: broaden autoimmune and scarring review
A patch needs close inspection, not a generic hair-loss panel.
A verified trichologist can document the morphology and direct urgent referrals; medical testing depends on the leading diagnosis.
- 01 · Photograph the borderRecord size, shape, surface and progression before treatment changes.
- 02 · Magnify the hairsLook for tapered, comma, corkscrew, broken or miniaturized hairs.
- 03 · Test the specific questionUse fungal studies, biopsy or selected labs only when the pattern supports them.
- 04 · Review exposuresInclude styling force, pulling behavior, contact with infected people or animals and systemic symptoms.
When the story needs medical attention.
Hair loss may be one clue within a larger health issue. Seek timely evaluation when any of these apply.
- Child with a scaly patch
- Painful swelling or pus
- Rapidly spreading smooth patches
- Loss of follicular openings
- Eyebrow or eyelash involvement
- Patch accompanied by fever or systemic illness
Treat the named cause—and protect the patch while it is being clarified.
Cover-up can support confidence, but irritants and vigorous manipulation can obscure activity.
Alopecia-areata care
Local or systemic immune-directed treatment may be considered according to extent and age.
Prescription antifungal care
Scalp ringworm generally requires oral treatment and household guidance from a clinician.
Remove traction or pulling
Reduce force and address repetitive pulling behavior with appropriate support.
Suppress active inflammation
Prompt dermatology therapy aims to preserve follicles that remain.
Track the border while the diagnosis is being established.
Document morphology
Photograph the spot and note scale, pain, itch and broken hairs.
Complete urgent testing
Do not delay suspected fungal infection or scarring inflammation.
Judge recovery
Look for regrowth, stable borders and symptom control according to the diagnosis.
Alopecia Areata
Use the focused condition guide to explore patch patterns, nail clues and the unpredictable course of autoimmune loss.
Read next
Clear answers to the next questions.
Are all round bald spots alopecia areata?
No. Fungal infection, pulling, traction and scarring disease can also create localized loss.
Can bald spots grow back?
Many can if follicles remain intact; scarred follicles are less likely to regrow.
Should I use minoxidil on a patch?
Not before the cause is reasonably clear, because infection or active scarring requires different treatment.
Is scalp ringworm contagious?
Yes. It needs prompt medical diagnosis and usually oral antifungal therapy.
What does a shiny patch mean?
It may indicate lost follicular openings and scarring, especially with symptoms or progression.
Can hair pulling cause a bald spot?
Yes. Trichotillomania often produces irregular patches with hairs of different lengths and deserves compassionate behavioral support.