1, do some exercises that help strengthen abdominal muscles, such as sit-ups, plate support, etc. These exercises can help improve the strength and tightness of abdominal muscles, thus making the navel look deeper.

2. Regular massage of navel also helps to improve its appearance. You can use some special navel massage oil, olive oil and hot towels. Massage can help stimulate blood circulation and promote skin metabolism, thus making navel look healthier and more shiny.