Hair fall has started in 20s and 30s? So these reasons may be behind it..
- byShikha Srivastava
- 05 Aug, 2025
Nowadays, hair loss has become a common problem at a young age. If you are 20 or 30 years old and your hair is falling rapidly, then it can be a matter of concern. Some medical conditions or lack of nutrition can also be hidden behind hair loss.

But don't panic, by knowing about these reasons (Causes of Hair Fall), you can control hair fall. Let's know what the reasons are behind hair fall.
Stress
In today's busy life, everyone is definitely stressed about something or the other. Due to stress, cortisol hormone increases in the body, which has a bad effect on the hair growth cycle, and hair starts falling.
Bad diet and lack of nutrition
Protein, iron, zinc, vitamin D, and B-complex are necessary for healthy hair. If there is a lack of these nutrients in your diet, then the hair becomes weak and starts breaking. Junk food, processed food, and unhealthy eating habits also promote hair loss.
Hormonal imbalance
PCOS, thyroid, and other hormonal problems can cause hair loss. An imbalance of estrogen in women and testosterone in men also triggers hair loss.
Genetic reasons
If someone in the family already has a problem with baldness, then it can also be genetic. This is called androgenic alopecia, which can happen in both men and women.
Use of too many chemicals
Using too much shampoo, hair gel, color, straightening, or curling treatment on hair weakens the hair roots. This makes the hair dry, lifeless, and start breaking.
Lack of sleep
Frequently interrupting sleep or not getting enough sleep also affects hair growth. 7-8 hours of sleep are necessary to repair and recover the body.
Lack of water
Due to lack of water in the body, hair becomes dry and brittle. Drinking 8-10 glasses of water daily keeps the hair healthy.
Smoking and alcohol
Drinking alcohol and smoking are harmful to hair. It reduces blood circulation, which weakens the hair roots.
Scalp infection or dandruff
Fungal infection, dandruff, and improper cleaning of the scalp also cause hair loss.

Side effects of medical conditions and medicines
Some diseases like diabetes, autoimmune disorders or chemotherapy also cause hair loss. Sometimes hair fall can also be a side effect of some medicines.
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