Menstruation is menstruation, menstruation like jelly, the first consideration is that the menstrual blood contains shed endometrial epithelium and other tissues, which is a normal situation. The second consideration is that it is caused by endocrine disorders. 1. Normal situation: During a normal woman’s menstrual period, the endometrium will physiologically proliferate and shed, and the shed endometrium will be mixed with the menstrual blood to be discharged out of the body. If the epithelial tissue and debris shed by the endometrium is large, it will cause the menstrual blood to look like jelly. As long as the woman does not suffer from lower abdominal pain and other discomforts, it is normal and no need to worry too much. 2. Endocrine disorders: usually due to hormone production is too much or too little, hormone resistance in the target tissues, and also with puberty, nutrition, environment, emotions and other factors. Endocrine disorders is a broad concept, the patient may appear irregular menstruation, and can also be manifested in menstruation like jelly. Occasionally, if the menstrual period looks like jelly and is not accompanied by the symptoms mentioned above such as lower abdominal pain, it is considered to be normal and women do not need to worry too much. However, if the phenomenon occurs frequently or is accompanied by uncomfortable symptoms, it is recommended to consult a doctor as soon as possible to identify the specific cause of the problem.