No, fingernails cannot grow back together once they have been separated or broken. Once a fingernail is damaged or broken, it will continue to grow from the base of the nail bed, but it will not reattach to the separated or broken part. The separated or broken part will need to grow out on its own, and the nail will eventually appear whole again as it continues to grow. **

No, once a piercing is made, the hole will not grow back together on its own. However, if the piercing is removed and the hole is left empty, the skin may close up over time. This process can vary depending on the individual and the location of the piercing. In some cases, the hole may close up completely, while in others, it may leave a small scar or indentation. **

Yes, ear piercings can grow back together if left without jewelry for an extended period of time. The hole may close up and the skin may heal, effectively causing the piercing to close. However, the amount of time it takes for a piercing to close up can vary from person to person, and some individuals may find that their piercings do not fully close even after a long period of time without jewelry. **

Yes, an industrial piercing can grow together if the two holes created for the piercing are close enough and the jewelry used is long enough to allow for some movement. As the piercing heals, the tissue around the two holes may fuse together, creating a single channel. It is important to follow proper aftercare instructions and avoid changing or removing the jewelry too soon to prevent complications during the healing process. **

A septum grows together during the healing process after a septoplasty, which is a surgical procedure to correct a deviated septum. During the surgery, the septum is straightened and any excess tissue or bone is removed. After the procedure, the septum will gradually heal and grow together in its new, straightened position. This typically takes several weeks to months for the septum to fully heal and for the tissues to fuse together. **

Yes, stretched earlobes can grow back together to some extent, but it depends on the size of the original piercing and how long it has been stretched. If the stretching is not too severe and the earlobes are allowed to heal without any further stretching, they may shrink back to a smaller size. However, if the stretching is significant or has been stretched for a long time, the earlobes may not fully close up on their own and may require surgical intervention to repair. **

Whether a piercing will grow back together depends on several factors, including the type of piercing, how long it has been since the piercing was removed, and individual differences in healing. Some piercings, such as earlobe piercings, have a higher likelihood of closing up if left without jewelry for an extended period of time. However, cartilage piercings, particularly those that have been healed for a long time, may not fully close up even if the jewelry is removed. It's best to consult with a professional piercer or healthcare provider for personalized advice based on your specific situation. **

No, cracks in materials do not grow back together on their own. Once a material has cracked, it typically requires some form of repair or intervention to restore its structural integrity. Depending on the material and the severity of the crack, different methods such as welding, adhesive bonding, or mechanical fastening may be used to repair the crack and prevent further damage. **