Can a New Toenail Grow Under Another?
Understanding the Condition
It is indeed possible for a new toenail to grow under an existing one, particularly if the existing toenail is damaged or has been partially removed. This condition, often referred to as "subungual hyperplasia", is a phenomenon that occurs when the toenail lifts up and separates from its growth plate, leading to the production of new nail that grows underneath the existing one.
This can happen in several scenarios, most commonly as a result of trauma to the existing nail or a fungal infection beneath the nail. Regardless of the cause, the separation of the nail from its growth plate leads to the production of new nail, which then grows under the old one. While this may not be a painful experience, it is crucial to consult a healthcare professional to assess the situation and determine the best course of action to prevent complications such as infections or further nail deformities.
Causes and Symptoms
The two most common causes of a new toenail growing under an existing one are trauma to the nail and fungal growth. When a toenail is subjected to trauma, either through an accidental injury or from poorly-fitting footwear, the nail can lift and separate from the nail bed. Over time, the nail plate, which is responsible for producing new nail, resumes growth under the old nail. This can lead to a distorted or deformed nail shape.
Fungal infections can also cause the same separation and subsequent nail growth. Fungi thrive in warm, moist environments and can affect the nail plate, leading to the separation of the nail from the underlying tissue. As the fungus attacks the nail, it can cause the nail to lift and separate, eventually leading to the growth of a new nail that sits beneath the old one.
Personal Accounts and Experiences
Many individuals have experienced the phenomenon of a new toenail growing under an existing one. A common personal account is that following a slight injury, such as smashing a finger, the conditions can lead to the separation of the toenail and the subsequent growth of a new one. For instance, someone might comment, "I smashed my finger a few months ago, and a new nail grew in under my old nail."
Others share that their nail continues to grow as long as the nail base remains healthy. If the growth of the nail is interrupted due to an infection or severe trauma, the nail might detach from the nail bed. In such cases, the nail could begin to grow “under” the detached nail, but this process is often accompanied by conditions such as pus or other unsanitary matter under the detached nail. It is therefore recommended to have the detached nail removed and allow the clean regrowth of the new nail to proceed.
What Can You Do?
If you notice a new toenail growing under an existing one, it is highly recommended to consult a healthcare professional, such as a dermatologist or podiatrist. These specialists can assess the situation and determine the appropriate treatment to avoid complications like infections or further nail deformities. Treatment can range from topical antifungal medications to oral antifungal treatments, depending on the severity of the condition.
In cases where the nail is already detached, the healthcare professional might choose to remove the detached nail to ensure a healthy environment for the new nail to grow. This can be done through a simple procedure and often requires minimal recovery time.
Maintaining good hygiene and regularly inspecting your nails for any signs of trauma or fungal growth is also crucial. This can help prevent the occurrence of a new toenail growing under an existing one in the first place.
By understanding the causes, symptoms, and treatment options for this condition, you can take the necessary steps to ensure your nails remain healthy and beautiful.