Bariatric Surgery and Hair Loss: Understanding the Link and What You Can Do

Hair loss after bariatric surgery is a common and often unexpected side effect for many patients. While the focus post-surgery is usually on weight loss and improved health, the sudden appearance of thinning hair can be distressing. Fortunately, this type of hair loss is usually temporary and manageable with the right knowledge and care.

Why Does Hair Loss Happen After Bariatric Surgery?

Hair loss typically occurs 3 to 6 months after surgery and is commonly due to a condition called telogen effluvium. This condition causes hair follicles to prematurely enter the shedding phase due to physical stress on the body—such as major surgery, rapid weight loss, and changes in diet.

Click here for ten easy to access superfoods to add to your diet

In addition to stress, nutritional deficiencies play a major role. Bariatric procedures reduce the stomach’s capacity or alter nutrient absorption, which can lead to low levels of:

• Protein
• Iron
• Zinc
• Biotin
• B-complex vitamins, especially B12 and folate

These nutrients are essential for healthy hair growth, so when they’re lacking, the hair growth cycle is disrupted.

Click here for a list of blood tests that are helpful for your hair growth journey

What Can You Do to Reduce Hair Loss and Support Hair Loss Recovery?

While hair loss after bariatric surgery may not be completely preventable, there are steps you can take to support healthy regrowth and minimize the severity:

1. Follow your supplement plan religiously. Your doctor or dietitian will recommend specific vitamins and minerals to support your recovery and prevent deficiencies.
2. Prioritize protein. Hair is made of keratin, a protein. Ensure your meals include high-quality protein sources as part of your post-op diet.
3. Avoid crash dieting. While the surgery facilitates rapid weight loss, try to ensure the pace is steady and balanced by following medical advice closely.
4. Be gentle with your hair. Limit heat styling, tight hairstyles, and chemical treatments during this sensitive period.
5. Incorporate a scalp care routine: You want to stimulate your scalp during the recovery period, and a scalp care routine will help you do exactly that

Click here for your simple scalp care routine

Will My Hair Grow Back?

In most cases, yes—your hair will regrow once your body stabilizes and nutritional levels are restored. The shedding usually slows down within 6 to 9 months post-surgery. Regrowth may take longer, but with the right nutrition and care, your hair can return to its normal fullness.