The most common reason for hair loss is a genetic predisposition, i.e., male or female pattern baldness (Androgenetic alopecia). The other possible causes of hair loss are:

• Nutritional deficiency- Less amount of micronutrients and macronutrients in the diet can affect hair growth. These include proteins, iron, zinc, magnesium, and vitamins B and C. 
• Use of certain medications- Use of birth control pills that has high androgen index leading to hair loss. 
• Effect of certain hairstyles- Tight hairstyles and use of heat styling tools.
• Hormonal imbalance- It happens during PCOS, pregnancy, or menopause period.
• A physical or emotional shock- Sudden extreme weight loss, high fever, or depression can also lead to hair loss.
• Telogen effluvium- It occurs when the hair tends to stay in the shedding phase of the natural hair growth cycle. It can occur due to rapid weight loss, surgery, childbirth, stress, thyroid problems, hot weather, humidity, or some medications. 
• Anagen effluvium- Unusual hair fall occurs during the natural growth phase. It is caused by autoimmune disease, fungal infection, chemotherapy, or radiation. 
• Autoimmune disorder- Alopecia areata is caused when the weakened immune system (mostly due to stress) attacks the healthy hair follicles resulting in bald patches.
• Scalp infection- Ringworms (fungus) or tinea capitis infection cause temporary hair loss as they grow to form red, itchy and scaly patches on the skin. 

Dr. Vandana Malik, the best Dermatologist in Noida, provides the best range of hair loss treatment in Noida. These treatments are safe and very much effective in curing hair loss problems.