Why Your Fingernail May Not Be Growing Back—and What You Can Do About It

Losing a fingernail can be an unsettling experience, especially when weeks go by and it doesn’t seem to grow back. While fingernails typically regenerate within 3 to 6 months, various factors can delay or even prevent regrowth. If your fingernail is not growing back, understanding the underlying cause is key to finding the right solution.

What’s Normal: The Nail Growth Process

A healthy fingernail grows about 3 millimeters a month, originating from a hidden area under the skin called the nail matrix. This is where new nail cells form and push older ones forward to become the visible nail plate. Minor trauma, such as hitting your finger, may cause the nail to temporarily stop growing, but it often resumes on its own.

However, if your nail is not growing back at all—or the growth is very slow or abnormal—something more serious may be going on.

Common Reasons a Fingernail May Not Grow Back

1. Severe Trauma to the Nail Matrix

The nail matrix can be damaged by crushing injuries, burns, or deep lacerations. If the matrix is scarred, it may no longer produce new nail cells. This can result in permanent nail loss or distorted regrowth.

2. Nail Bed Scarring

When the nail bed (the skin beneath the nail) becomes scarred due to injury, surgery, or infection, it can interfere with the new nail’s ability to adhere and grow properly.

3. Chronic Infections

Repeated fungal or bacterial infections, especially if left untreated, can damage the nail-producing area. Fungal infections may also thicken or discolor the nail, making it look like it's not growing when it actually is—just in an abnormal way.

4. Autoimmune or Skin Conditions

Diseases like psoriasis, lichen planus, and alopecia areata can affect nail growth by attacking the cells that produce the nail. These conditions often impact more than one nail and may also cause pitting, ridges, or discoloration.

5. Nutritional Deficiencies

Inadequate levels of biotin, iron, protein, or zinc can impair nail formation. Individuals with poor diets, eating disorders, or absorption issues (like celiac disease) are at greater risk.

6. Circulatory Issues

Poor blood flow, particularly in conditions like Raynaud’s disease or peripheral artery disease, can deprive the nail matrix of the nutrients and oxygen it needs to function.

7. Chemotherapy or Radiation

Cancer treatments are known to impact fast-growing cells in the body, including those in the nail matrix. In some cases, nail growth slows drastically or stops altogether during treatment.

8. Age-Related Changes

As we age, nail growth naturally slows. Elderly individuals may notice that damaged nails take much longer to regenerate—or may not return at all, especially if circulation or nutrition is compromised.

When to See a Doctor

You should consult a healthcare provider if:

• Your nail hasn't started growing back after 6 months.

• The nailbed looks dark, irregular, or painful.

• You notice swelling, pus, or signs of infection.

• The nail is growing back misshapen or not at all.

A dermatologist or hand specialist can assess the damage using visual examination or imaging, and recommend next steps.

Treatment Options and Recovery

• Protect the area: Keep the nail bed clean and dry. Use a protective bandage if necessary.

• Topical or oral medications: Antifungals or steroids may be prescribed if infection or autoimmune issues are involved.

• Biotin supplements: These may help promote keratin production, especially in people with nutritional gaps.

• Nail bed repair: In cases of severe trauma, surgical repair of the nail bed or matrix may restore the potential for regrowth.

• Artificial nails or prosthetics: For permanent loss, cosmetic options exist to restore appearance and some function.

Final Thoughts

If your fingernail is not growing back, don’t ignore it. Nail growth can reveal a lot about your overall health. Whether the cause is trauma, infection, or a deeper medical issue, early intervention improves the chances of recovery. Stay observant, take care of your hands, and consult a qualified professional if something doesn’t seem right. A healthy nail is more than cosmetic—it’s a sign of internal balance.