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The surgical planning of a natural-looking frontal hairline in hair transplantation.
Temporary shedding of existing or transplanted hairs after hair restoration surgery.
Non-surgical hair replacement options used to cover extensive or treatment-resistant hair loss.
Electrostatic cosmetic fibres used to make existing hair look thicker.
A tattoo-like technique that places pigment dots on the scalp to mimic shaved hair or reduce contrast.
An experimental regenerative treatment using extracellular vesicles that may influence hair follicle signalling.
A blood-derived injectable treatment related to PRP, designed to release growth factors gradually.
An anti-androgen used in selected women with pattern hair loss, especially where hyperandrogenism is relevant.
An anti-androgen sometimes used off-label for female pattern hair loss under specialist care.
A person who does not get meaningful improvement from minoxidil despite correct, consistent use.
A foam formulation of topical minoxidil used for pattern hair loss.
An oral JAK3/TEC inhibitor licensed for severe alopecia areata in people aged 12 and over.
A specialist alopecia areata treatment that creates controlled allergic inflammation on the scalp.
A topical irritant sometimes used to stimulate regrowth in alopecia areata.
Steroid creams, lotions, gels or foams applied to inflammatory hair loss areas.
Steroid injections into bald patches, commonly used for limited alopecia areata.
The thickness or diameter of an individual hair shaft.
The number of hairs in a defined scalp area.
Consistent clinical photographs used to track hair loss or treatment response over time.
A method of counting hairs shed during washing to help evaluate excessive shedding.
A female pattern hair loss pattern with widening over the central frontal scalp.
A pattern hair loss classification system designed for both men and women.
A fine, short, lightly pigmented hair.
A subtle brown halo around hair follicles on trichoscopy, often discussed in androgenetic alopecia.
Variation in hair thickness across the scalp, often used as a trichoscopic clue to pattern hair loss.
Pigmented broken hairs at scalp level, often indicating active follicular damage or breakage.
Yellow follicular dots seen on trichoscopy in several hair loss conditions.
Short tapered hairs that can be seen at the edge of alopecia areata patches.
Inflammation of scalp hair follicles, often causing itchy or sore bumps and pustules.
A rare form of patchy permanent scalp hair loss, usually diagnosed after excluding other scarring alopecias.
A chronic scarring folliculitis affecting the nape and occipital scalp.
An inflammatory scalp condition causing painful nodules, abscesses and scarring hair loss.
Scarring hair loss caused by discoid lupus affecting the scalp.
A hair shaft defect where hairs fracture at weak points, causing breakage and fraying.
A condition where growing hairs are poorly anchored and can be pulled out easily.
A stable, non-scarring patch of hair loss, usually on the frontotemporal scalp.
Alopecia areata presenting as widespread shedding rather than obvious round patches.
A band-like form of alopecia areata around the sides and back of the scalp.
Loss of eyebrow or eyelash hair.
Alopecia areata affecting the beard area.
Hair loss triggered or worsened by anabolic-androgenic steroids in genetically susceptible people.
Pattern-like thinning or shedding associated with anti-oestrogen or hormone-modifying treatments.
Hair shedding or thinning triggered by a medicine or drug exposure.
Hair loss caused by cancer treatments that affect rapidly dividing hair follicle cells.
Diffuse shedding after rapid weight loss, severe calorie restriction or inadequate nutrition.
Low vitamin D may be relevant in some hair loss presentations, but it is not a stand-alone diagnosis.
Diffuse shedding or thinning associated with an underactive or overactive thyroid.
Hair thinning around or after menopause, often involving female pattern hair loss or increased shedding.
Increased shedding after giving birth, usually due to a temporary shift in the hair cycle.
A common search term for temporary shedding after significant physical or emotional stress.
A 5-alpha reductase inhibitor used for male pattern hair loss to reduce DHT.
An autoimmune, non-scarring hair loss condition that often causes round or oval patches.
A temporary, non-scarring shedding condition caused by many hairs entering the resting phase together.
A common, progressive, non-scarring patterned hair loss driven by genetic susceptibility and androgen biology.
FUE removes follicular units one by one; FUT/FUSS removes a strip that is dissected into follicular units.
Controlled tiny needle injuries to the scalp, usually used as an adjunct to stimulate repair pathways.
A procedure where concentrated platelets from the patient’s own blood are injected into the scalp.
A light-based treatment using low-energy red or near-infrared light to stimulate hair follicles.
An antifungal shampoo used for dandruff and seborrhoeic dermatitis, sometimes as an adjunct in pattern hair loss.
An antiandrogen medicine used off-label for some women with female pattern hair loss.
Local scalp delivery of dutasteride, usually topical or injection-based, with limited standardisation.
A stronger dual 5-alpha reductase inhibitor that reduces DHT more profoundly than finasteride.
A debated term for persistent sexual, physical or psychological symptoms reported after finasteride.
Recognised potential side effects include sexual dysfunction and mood-related symptoms.
Finasteride applied to the scalp to reduce local DHT with lower systemic exposure than tablets.
Temporary early hair fall that can occur after starting minoxidil.
Low-dose tablet minoxidil used off-label for hair loss under medical supervision.
A scalp-applied hair growth stimulant used for male and female pattern hair loss.
The part of the donor scalp most likely to retain hair long term and provide transplantable grafts.
A natural grouping of one to four hairs that emerges from the scalp as a unit.
Digital methods for measuring hair density, diameter and growth-cycle features in a target scalp area.
A small sample of scalp skin examined under a microscope to clarify uncertain hair loss diagnoses.
A simple test where a small group of hairs is gently pulled to assess active shedding.
Magnified examination of the scalp and hair using a dermatoscope or digital device.
A five-point photographic scale for grading female pattern hair loss by midline part width.
A three-grade scale used to describe female pattern hair loss over the crown.
A visual grading system for male pattern hair loss severity.
Biotin can help true biotin deficiency, but it is not proven to treat ordinary pattern hair loss.
Diffuse shedding may be associated with low iron stores, but the relationship is not straightforward.
A fungal infection of the scalp and hair, also called scalp ringworm.
Hair loss caused by recurrent pulling of one’s own hair.
Hair loss caused by repeated tension on the hair from styling, extensions or tight hairstyles.
A scarring alopecia that usually begins at the crown and spreads outwards.
A scarring alopecia that causes progressive recession of the frontal hairline and often eyebrow loss.
A scarring inflammatory alopecia that can cause patchy permanent hair loss.
A group of hair loss disorders where inflammation destroys follicles and can cause permanent loss.
The Severity of Alopecia Tool score estimates the percentage of scalp hair loss in alopecia areata.
Severe forms of alopecia areata causing complete scalp hair loss or complete body hair loss.
Rapid hair loss caused by damage to actively growing hairs, classically during chemotherapy.
Persistent diffuse shedding lasting more than six months, often with no single obvious trigger.
The repeating cycle of hair growth, transition, rest and shedding.
5-alpha reductase is the enzyme that converts testosterone to DHT; some medicines block it.
A potent androgen made from testosterone and strongly linked to male pattern hair loss.
The process where thick terminal hairs become progressively finer, shorter and lighter.
An increase in hairs falling out, often noticed in the shower, brush, pillow or hands.
Generalised reduction in scalp hair density rather than one sharply defined bald patch.
Backward movement of the frontal hairline, especially at the temples.
A common type of non-scarring hair loss in women, usually causing central scalp thinning with a retained frontal hairline.
Pattern hair loss in men, usually involving a receding hairline, temple recession and/or crown thinning.
Alopecia means hair loss. It can be temporary or permanent, and scarring or non-scarring.
