What Can Cause Excessive Hair Loss: Comprehensive Guide

Medically reviewedby Dr. Bilal Khan M.B.B.S.
WrittenbyLuat Duong
Last updated

Experiencing excessive hair loss can be distressing and may have various underlying causes. Understanding the potential triggers can help identify the best course of action for treatment and management.

What Can Cause Excessive Hair Loss?

There are several factors that can contribute to excessive hair loss. Some common causes include:

  • Androgenetic alopecia, also known as male or female pattern baldness, which is a genetic condition
  • Telogen effluvium, a temporary condition where hair remains in the shedding phase of the growth cycle
  • Anagen effluvium, which causes rapid hair loss during the growth phase, often due to chemotherapy or radiation
  • Alopecia areata, an autoimmune condition that leads to sudden hair loss
  • Traction alopecia, caused by tight hairstyles that pull on the hair
  • Side effects of certain medications, such as blood thinners, Accutane, antidepressants, and cholesterol-lowering drugs
  • Nutritional deficiencies, particularly low protein or iron levels
  • Hormonal changes, such as those experienced after giving birth
  • Fungal infections, like ringworm on the scalp
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Identifying the Signs of Excessive Hair Loss

Signs of excessive hair loss can include gradual thinning, circular or patchy bald spots, sudden hair shedding, or changes in hair texture such as brittleness or thinning. Identifying these signs can help in understanding the potential cause.

Managing Excessive Hair Loss

The management of excessive hair loss depends on the underlying cause. Treatment options may include:

  • Medications, such as minoxidil (Rogaine) or prescribed treatments for specific conditions
  • Addressing nutritional deficiencies through a balanced diet or supplements
  • Changing hairstyles to minimize tension and avoid excessive pulling of hair
  • Seeking medical advice for appropriate treatment of underlying medical conditions


Understanding what can cause excessive hair loss is essential in finding effective solutions. It's important to consult a healthcare professional for an accurate diagnosis and personalized treatment plan. With the right approach, it is possible to manage and address excessive hair loss successfully.

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Luat Duong

Luat Duong is a Copenhagen-based writer and content strategist specializing in hair loss and health. His work has been featured in MyHealthGuide, The Right Hairstyles, and Woman's Era. He is a graduate of Vaasa University. You can connect with him on LinkedIn.