Androgenetic alopecia
Informed by recognized medical guidance
Overview
Androgenetic alopecia is a common type of hair loss that runs in families. It is also called male pattern baldness or female pattern hair loss. It happens because of a mix of genes and hormones.
Key facts
- It is the most common cause of hair loss in both men and women.
- It usually starts in adulthood and gets worse over time.
- It is not a sign of a serious illness and does not affect your physical health.
Yes, it is very common. About half of all men and many women will experience some degree of androgenetic alopecia by age 50.
It affects both men and women, but the pattern of hair loss is different. Men often lose hair from the temples and crown, while women usually have thinning over the top of the scalp.
Symptoms
- Sudden, rapid hair loss in patches (could be a different condition)
- Scalp pain, redness, swelling, or oozing (sign of infection or inflammation)
- ⚠Hair loss that appears suddenly after starting a new medicine
- ⚠Hair loss with itching, burning, or tenderness on the scalp
- ⚠Hair loss that comes with other symptoms like fatigue or weight changes
Common symptoms
- Gradual thinning of hair on the scalp
- Receding hairline (especially at the temples) in men
- Thinning hair along the part line in women
- Hair becoming finer and shorter over time
- Bald spots on the crown or top of the head in men
Symptoms in children
- Androgenetic alopecia is very rare in children. If a child has hair loss, it is usually due to other causes. Symptoms in a teenager may be similar to adults but less severe.
Symptoms in older adults
- Hair loss may progress more slowly in older adults.
- The hair may become thinner overall, but complete baldness is rare in women.
Causes
Main causes
- Genetics: Family history of hair loss increases your risk.
- Hormones: A hormone called dihydrotestosterone (DHT) shrinks hair follicles over time, leading to thinner hair.
Risk factors
- Having a parent or sibling with androgenetic alopecia
- Being male
- Getting older
- Hormonal changes, such as after menopause in women
When to see a doctor
See a doctor urgently if:
- Sudden or patchy hair loss
- Scalp pain, redness, or discharge
Book a routine appointment if:
- Gradual hair thinning that bothers you
- Hair loss that affects your confidence or mood
Diagnosis
A doctor or dermatologist will look at your scalp and ask about your medical and family history. This is often enough to diagnose androgenetic alopecia.
Tests that may be done
- Pull test: Gently pulling a few hairs to see if they come out easily.
- Scalp biopsy: Taking a small sample of skin from your scalp to examine under a microscope.
- Blood tests: To check for other causes like iron deficiency or thyroid problems.
What to expect at your appointment
The diagnosis is usually straightforward. Your doctor may rule out other types of hair loss. You will likely get advice on treatment options and what to expect as you age.
Treatment
Androgenetic alopecia cannot be cured, but treatments can slow hair loss and sometimes stimulate regrowth. The earlier you start, the better the results. Many people use a combination of approaches.
Self-care at home
- Be gentle with your hair: avoid tight hairstyles, harsh brushing, or hot styling tools.
- Use a mild shampoo and conditioner.
- Consider using a soft-bristled hairbrush or wide-tooth comb.
- Avoid smoking and manage stress, as both can worsen hair loss.
Medical treatments
Treatments include medicated lotions applied to the scalp and pills taken by mouth that can slow hair loss and promote regrowth. Low-level laser devices and platelet-rich plasma (PRP) injections are also used. Talk to your doctor about which options might be right for you.
When is surgery considered?
Hair transplant surgery can be an option for some people. A surgeon moves healthy hair follicles from one part of the scalp to areas with thinning hair. This works best for men with stable hair loss.
Living with this condition
Most people with androgenetic alopecia lead normal lives. You can choose to treat the hair loss, camouflage it with hairstyles or wigs, or leave it as is. There is no right or wrong choice.
Lifestyle tips
- Wear a hat or sunscreen on your scalp to protect from sunburn.
- If you feel self-conscious, consider a wig, hairpiece, or fibers that make hair look thicker.
- Talk to a hairstylist about flattering cuts or styles.
Diet and exercise
A balanced diet with enough protein, iron, zinc, and vitamins may support hair health. Exercise helps reduce stress, which can be beneficial. There is no special diet that reverses hair loss.
Mental health and emotional wellbeing
Hair loss can affect how you feel about yourself. It might cause sadness, anxiety, or lower self-esteem. If these feelings get strong, talk to a counsellor or your doctor. You are not alone.
Prevention
Androgenetic alopecia cannot be prevented because it is genetic. However, early treatment may slow the progression. Living a healthy lifestyle may help your hair stay in better condition overall.
Vaccines
There are no vaccines for this condition.
Screening programmes
There is no routine screening test. You can monitor your hair yourself and see a doctor if you notice changes.
Complications
If left untreated
- Hair loss will continue to get worse over time.
- In men, it can lead to complete baldness on the top of the head.
- In women, hair thinning may become more noticeable but rarely leads to total baldness.
Long-term outlook
Androgenetic alopecia is a long-term condition, but many treatment options exist to slow or partially reverse hair loss. Most people manage well with treatment or by accepting the changes. Your doctor can help you find a plan that works for you.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 9, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.