How Common Is Hair Loss After Surgery?

Hair loss is a frequent occurrence after bariatric surgery, affecting about half of all patients. It typically peaks around 3 to 6 months post-surgery. The good news? This hair loss is temporary. Most patients experience full regrowth within 6 to 12 months.

Only a small percentage of patients (about 5–10%) experience severe hair loss due to underlying medical conditions or nutrient deficiencies. If you find that your hair loss is excessive or prolonged, consult your healthcare provider to rule out potential deficiencies.

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Why Does Hair Loss Happen?

Post-surgical hair loss is mainly due to the physiological stress or ‘shock’ your body undergoes after surgery. Rapid weight loss, combined with changes in nutrient absorption, can disrupt your hair’s natural growth cycle. This type of hair shedding is known as telogen effluvium and is common after any major stress event, including surgery.

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What Can You Do to Minimize Hair Loss?

While hair loss after bariatric surgery may not be entirely preventable, there are three steps you can take to reduce its severity and promote healthy regrowth:

1. Eat Enough Protein

Protein is essential for hair growth and overall health. Aim for at least 60–80 grams per day, or about 1.2 to 1.5 grams of protein per kilogram of your ideal body weight, or follow the specific recommendation from your dietitian. Including high-protein foods at every meal and snack to support your body’s healing process and strengthen hair follicles.

2. Take Your Vitamins Regularly

Bariatric surgery alters the way your body absorbs nutrients, making it crucial to take your prescribed supplements consistently. 

• Multivitamin  - daily
• Calcium + Vitamin D - daily
• Iron - twice weekly
• Vitamin B12 - once weekly

Deficiencies in these nutrients can contribute to hair loss, so staying on top of your supplementation is key.

3. Maintain a Varied and Colorful Diet

A diverse diet ensures you’re getting a wide range of vitamins and minerals essential for hair health. Try to include a variety of colorful fruits, vegetables, whole grains, healthy fats, and lean protein sources. The more variety in your diet, the better your chances of meeting your nutritional needs.

Do Hair Loss Supplements Work?

You may have heard about hair, skin, and nail supplements like biotin, collagen, and other name brands that claim to prevent hair loss. However, there is no strong evidence that these supplements are effective in preventing post-bariatric surgery hair loss. While they are generally safe to take, they might not make a significant difference and could simply be an unnecessary expense.

Final Thoughts

Hair loss after bariatric surgery is a temporary phase that many patients experience. By ensuring you consume enough protein, take your prescribed vitamins, and eat a nutrient-rich diet, you can support your body through this transition and encourage healthy hair regrowth. If you have concerns about excessive hair loss, don’t hesitate to reach out to your dietitian or healthcare provider.

Have you experienced hair loss after weight loss surgery? Share your experience or any tips that worked for you in the comments below!

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