In this article:
Going through procedures such as scalp biopsies is part of the journey for those dealing with hair loss. Scalp biopsies are done for diagnosis purposes. They involve removing a small portion of the scalp for lab analysis to investigate scalp health, lesions, or hair loss patches. (1)
During the procedure, the marked area is cleaned and numbed, and a punch biopsy tool is used to extract skin and hair follicles. Afterward, the small opening is closed.
It is very simple and straightforward. Plus, the healing process takes about 1–2 weeks only.
However, this biopsy leaves a small scar on the scalp that prevents hair growth in that specific area. So, in most cases, hair might not grow back from the spot of scalp biopsy, while the remaining areas of the scalp support the usual hair growth.
This spot is very miniscule and small, which is why it does not pose much trouble.
Continue reading to learn more about hair growth after a scalp biopsy in detail.
What Is a Scalp Biopsy and Does It Stop Hair Growth?
A scalp biopsy, performed by a qualified healthcare professional, involves removing a small piece of skin for testing to diagnose or rule out various conditions.
It can be done using a punch biopsy tool. Some doctors also do shave biopsy, which involves removing layers with a razor blade. In rare cases, a surgical scalpel may be used with care.
The extracted tissue is then tested for an accurate diagnosis. For instance, a follicular count can reveal conditions such as androgenetic alopecia. (2)(3)
It’s important to understand that a punch biopsy, while good for diagnosing the cause of hair loss, can leave a small scar on the scalp, inhibiting hair growth in that specific area.
Experts clarify that, in most cases, hair may not regrow from the spot of the scalp biopsy, although the rest of the scalp continues to support regular hair growth. Fortunately, the affected area is very small, causing minimal inconvenience.
On the other hand, a shave biopsy, being a more superficial procedure, allows the scalp to heal within 7-10 days, with hair regrowth expected. This method does not damage the follicle structure below the surface and thus does not inhibit the potential for future hair growth.
Alternatives to Scalp Biopsy for Hair Loss Diagnosis
If you’re afraid your hair may not grow back after a scalp biopsy, ask your healthcare provider about these other diagnostic tools (2):
- Global photographs: Capture scalp images for in-depth analysis
- Dermoscopy: Uses a special device to examine the scalp and hair
- Contrasting felt examination: Assesses hair loss with a felt pad
- Phototrichogram: Studies hair growth and loss through photos
- TrichoScan: Analyzes hair health with a specialized device
- Polarizing and surface electron microscopy: Employs advanced microscopy for a detailed hair study
- Trichogram and unit area trichogram: Conducts specific tests to assess hair loss accurately
How Does a Scalp Biopsy Help You?
A scalp biopsy is like a deep dive into your hair and scalp health, providing important insights for addressing hair loss concerns.
First, it zooms in on the hair follicles, checking for any damage that causes hair loss and providing a count of follicles and hair numbers. It also works by spotting scalp infections or skin issues that may be the underlying cause of your hair loss.
Detecting inflammatory responses is another critical aspect of a scalp biopsy, as addressing them can slow or deter hair shedding. Importantly, it reveals the current status of hair loss and your potential for recovery.
In certain cases, it even helps assess if unusual growths on the scalp are dangerous and need medical attention. (3)(4)(5)
What Happens During a Scalp Biopsy?
To start, ensure your scalp is freshly washed without any hair products. Once you’re ready, the doctor takes charge.
They apply a local anesthetic to ensure you feel no discomfort. Using tools such as a scalpel or punch tool, they take a small sample of your scalp skin and hair follicles, barely the size of a pea.
After the biopsy, the doctor wraps the sampled area with a bandage and provides post-biopsy care instructions. The collected sample goes to the lab for analysis. (4)(6)
Does a Scalp Biopsy Hurt?
The procedure involves the administration of local anesthesia, so the biopsy itself is generally painless.
Final Word
Undergoing a scalp biopsy, a diagnostic procedure for hair loss, involves taking a small scalp sample for lab analysis. This, done with a punch tool or razor blade, aids in diagnosing conditions such as androgenetic alopecia.
A punch biopsy may leave a small scar inhibiting hair growth in that specific area, while a shave biopsy allows for quicker healing and hair regrowth.
- Was this article helpful?
- YES, THANKS!NOT REALLY
