The navel is shaped like a pentagram.

1. Upward shape: The navel extends upward, almost becoming a triangle with the top up. People with this navel should pay more attention to the health of the stomach, gallbladder and pancreas.

2. Bottom shape: attention should be paid to preventing gastroptosis, constipation, chronic gastrointestinal diseases and gynecological diseases.

3. Round: If a woman's navel is round, it means good health and good ovarian function;

4. Sea snake: It is a sign of liver diseases such as cirrhosis, so be careful.

5. Full moon shape: it looks firm and full, and the lower abdomen is elastic, which is a sign of good ovarian function in women.

6. Left navel: people with poor gastrointestinal function, constipation or colorectal mucosal lesions should be prevented.

7. Right navel: Pay attention to diseases such as hepatitis and duodenal ulcer.

8. navel protrusion: when there is a large amount of stagnant water or ovarian cysts in the abdomen, the navel will protrude outward.

9. navel depression: when obesity or abdominal inflammation, such as adhesive tuberculous peritonitis, the navel will be depressed inward.

10. Shallow navel: indicates weakness, abnormal hormone secretion in the body, general weakness and poor mental state.