Hair loss in women often has different triggers from hair loss in men. Understanding the factors below can help you recognise what may be behind increased shedding and when it is time to see a doctor.
1. Thyroid Disorders
Both an underactive thyroid (hypothyroidism) and an overactive thyroid (hyperthyroidism) can disturb the normal hair growth cycle and lead to diffuse thinning.
2. Post-Delivery / Childbirth
Hormonal changes after pregnancy can push many hairs into the shedding phase at the same time. This usually shows up a few months after delivery.
3. Hair Spa and Hair Treatments
Repeated chemical and heat styling can damage the hair shaft and stress the scalp. Common examples include:
- Perming
- Flat ironing
- Hair glue
- Keratin treatment
- Hair weaving
4. Vitamin and Mineral Deficiencies
Low levels of certain nutrients are linked with hair shedding:
- Iron
- Vitamin B12
- Vitamin D3
- Zinc
A blood test, ordered by your doctor, is the right way to find out whether you are deficient. Avoid self-prescribing supplements.
5. Crash Dieting
Sudden, severe calorie or protein restriction can deprive hair follicles of nutrients and trigger noticeable shedding.
6. After Stressful Events
Physical stress can lead to temporary hair shedding a few weeks to months later. Common triggers include:
- Surgery
- Viral infections
- Accidents
7. Drugs and Medications
Some medicines can affect hair growth, including:
- Hormonal supplements
- Isotretinoin
- Cancer drugs
Never stop a prescribed medicine on your own. Discuss any concerns with the doctor who prescribed it.
8. Medical Conditions
Some scalp and skin conditions can cause hair loss and need a proper diagnosis:
- Seborrhoeic dermatitis (SD)
- Lichen planopilaris (LPP)
- Frontal fibrosing alopecia (FFA)
When to see a doctor: If shedding is sudden, persistent, patchy, or comes with scalp redness, itching or pain, consult a dermatologist. The cause of hair loss differs from person to person and needs individual evaluation.
This article is for general health education and is not a substitute for medical advice.