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What are the Common Causes of Hair Loss?
Medically Reviewed By Dr. Preeti Saraswat, MBBS, ABHRS | Last updated: May 16, 2026

The natural hair growth cycle is divided into anagen, catagen, and telogen. This refers to the growing phase, the transition phase, and the resting phase, respectively. In the resting phase, hair gets detached from the root before it finally sheds. This type of hair shedding is part of the natural cycle. We lose about 50-100 hair strands daily on average.

Hair loss affects millions worldwide, and understanding the common causes of hair loss is the essential first step toward effective hair loss treatment. In Agra and surrounding regions, Saraswat Hospital specializes in diagnosing and treating hair loss, recognizing that the most common causes of hair loss are genetic, hormonal, nutritional, or lifestyle-related. When you visit a hair loss specialist for professional treatment, a thorough investigation of the root cause of your hair loss is the foundation of any effective treatment plan.

When you go for professional hair loss treatment, the first course of action taken is to investigate the root cause of your hair loss problem. Below, we look at the detailed common causes of hair loss that may result in advanced hair loss conditions.

What Are The Possible Common Causes of Hair Loss?

In order to plan the best hair loss treatment, it’s crucial to diagnose the common causes of hair loss behind your hair loss. Share your medical history and current medications with your doctor and help him/her plan the best treatment for you. 

Genetic Factors

Androgenetic Alopecia refers to hair loss caused by hereditary factors. This type of hair loss affects both men and women. Over 80 percent of men and close to 50 percent of women lose their hair due to this condition.

Androgenetic Alopecia in men is known as male pattern baldness. General characteristics include a receding hairline in the front and sides, a thinning crown area, and diffuse thinning all over the scalp. In women, it is referred to as female pattern baldness. A common symptom is a widening middle partition in the centre of the scalp. The treatment for genetic hair loss includes medication, low-light therapy, hair transplants, and scalp micropigmentation.

Hair Loss Before and After Result

Hormonal Imbalance

Any significant change in a person’s regular hormone levels can cause serious hair loss. Hormonal changes can happen due to thyroid problems, pregnancy, and childbirth, among other reasons. The hair loss treatment will vary based on the type of hormonal imbalance happening in one’s body.

An overactive or underactive thyroid gland causes hair to fall in a general pattern. Medication keeps your thyroid levels at a normal range. This contains the hair loss problem.

The hair loss after giving birth is temporary in nature. As soon as the estrogen levels in the body become stabilised, the hair loss stops.

Lack of Nutrition

Our hair needs the proper vitamins, minerals, and nutrients to grow nicely. Without sufficient nutrition, hair becomes weak and brittle, ultimately resulting in hair loss.

Your daily diet should be rich in protein, zinc, iron, vitamin E, vitamin D, vitamin B, selenium, omega-3 fatty acids, and more. Fresh fruits, green vegetables, eggs, seafood, chicken, nuts, and pulses are some of the essential foods one must consume to grow healthy hair. You can also ask your doctor about foods that reduce hair loss and promote new hair growth.

Medical Factors

There are plenty of medical factors that can cause hair loss. A person may suffer from autoimmune diseases such as Alopecia Areata, anaemic conditions, or scalp infections.

Alopecia areata is a type of autoimmune disease in which the white blood cells in one’s body attack the hair follicles. This causes hair fall with circular bald patches seen all over the scalp.

Bacterial or viral infections on the scalp or blood-borne diseases like anaemia can also contribute to hair loss. Cancer patients undergoing chemotherapy or radiation may also suffer from hair loss.

If you’re clueless about which doctor you should consult for your hair loss treatment, watch this video: 

Conclusion

These are some of the most common causes of hair loss, as explained. Visit a hair doctor to treat the cause of hair loss. If you live in Agra or a nearby city, visit the best hair specialist in Agra at Saraswat Hospital. Our ABHRS-certified doctors provide customized treatment based on individual hair loss conditions. Book an appointment today to get the best hair loss treatment.

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. Plastic, cosmetic, and laser treatments — including AI-assisted previews such as those generated by the Peek AI app — carry risks and results vary by individual. Always consult a licensed medical professional before undergoing any procedure.

Best Cosmetic Surgeon in India | Dr. Preeti Saraswat

Dr. Preeti Saraswat (MBBS, ABHRS)

Dr. Preeti Saraswat is a leading Hair Transplant and Cosmetic Surgeon with 20+ years of experience. She holds an MBBS from Kanpur and a Postgraduate Diploma in Clinical Cosmetology from the University of Greifswald, Germany, and is a diplomate of the American Board of Hair Restoration Surgery (ABHRS). She is an active member of IMA, IACLS, and AAAM. She specializes in scalp micropigmentation, skin rejuvenation, laser treatments, and hair restoration, and is also the founder of Twachaa by Saraswat, a premium skincare and hair care brand. She practices at Saraswat Hospital, Agra.

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