Hair loss can have many causes, from genetic predisposition to hormonal changes, deficiency states, or stress. A certain amount of daily hair loss is normal. However, if your hair becomes visibly thinner or falls out in patches, it is worth investigating the underlying cause.
Possible causes
Hereditary hair loss
The most common form, in which hair becomes thinner according to a typical pattern. It depends on genetic predisposition.
Hormonal changes
After pregnancy, during menopause, or with thyroid changes, hair growth can temporarily change.
Deficiency and stress
Iron deficiency, one-sided nutrition, infections, or severe stress can temporarily send hair roots into a resting phase.
Scalp conditions
Inflammatory or circular forms of hair loss are accompanied by changes to the scalp or clearly defined bald patches.

Typical steps at the doctor's office
- 1Your doctor will ask about the course, pattern, and possible triggers and will examine your scalp and hairline.
- 2Depending on the suspected cause, a blood test for deficiency states or a more detailed examination of the scalp may be appropriate.
- 3Further management depends on the identified cause and can range from treating a deficiency to care-focused measures.
What you can do yourself
- Pay attention to a balanced, nutrient-rich diet that contains iron and protein.
- Treat your hair gently, avoiding tight hairstyles, strong pulling, and hot blow-drying as much as possible.
- Ensure adequate sleep and good stress management.
- Use mild, skin-friendly care products for your scalp and hair.
An examination is advisable if your hair is falling out rapidly or in patches, if your scalp shows changes, or if the hair loss is causing emotional distress. A professional assessment helps to identify the cause and find appropriate measures.

Frequently asked questions
- How much hair loss is normal?
- Losing up to about one hundred hairs per day is considered usual. If your hair is visibly decreasing, an examination is worthwhile.
- Does fallen hair grow back?
- That depends on the cause. With deficiency or stress, hair growth often recovers; with hereditary hair loss, the course is different.
- Do dietary supplements help with hair loss?
- Only if there is actually a deficiency present. Whether such a deficiency exists is best determined through medical evaluation.
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