honeypot link
Brought to you by
About Merck
Merck Careers
Research
worldwide
skip to main content
skip to main content
Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
NEWS
ABOUT US
Home
/
Skin Disorders
/
Hair Disorders
/
Hair Disorders
Expand all
Collapse all
Overview of Hair Growth
Alopecia (Hair Loss)
Causes
Androgenetic alopecia
Alopecia areata
Central centrifugal cicatricial alopecia
Cutaneous lupus erythematosus
Hormone imbalance
Drugs
Nutritional disorders
Physical stresses
Psychologic stresses
Ringworm of the scalp (tinea capitis)
Traction alopecia
Evaluation
Warning signs
When to see the doctor
What the doctor does
Testing
Treatment
Drugs
Hair transplantation
Wigs
Other options
Key Points
More Information
Alopecia Areata
Symptoms
Diagnosis
Treatment
More Information
Hairiness
Causes
Hirsutism
Hypertrichosis
Evaluation
Warning signs
When to see a doctor
What the doctor does
Testing
Treatment
Physical methods
Hormone therapy
Other methods
Key Points
Ingrown Beard Hairs
Treatment
Prevention