Why does cervical cancer cause black blood?

Cervical cancer is very common in our gynecological tumors and is also a type of malignant tumor. You may not know much about its harm. Below, I will introduce to you the harm of cervical cancer and why cervical cancer causes black blood. Let's follow me to learn more about it!

What are the symptoms of cervical cancer? Cervical cancer is the most common gynecological disease. The impact of cervical cancer on the patient's body is very large. What are the symptoms of cervical cancer? Let's briefly introduce them together.
In general, the symptoms of cervical cancer are as follows:
1. Increased leucorrhea: 82% of patients have different degrees of changes in leucorrhea, such as increased leucorrhea, white, light yellow, bloody or purulent, thin like water or rice water, fishy smell. Late-stage patients with concurrent infection will have a foul odor or purulent. This is the most obvious manifestation of the early symptoms of cervical cancer.
2. Vaginal bleeding: This symptom occurs in most patients. The initial manifestation is bleeding after defecation, activities or gynecological examinations. In the early stage, it is mostly a small amount and often stops on its own. In the late stage, the lesions are larger and the bleeding is heavy, and even the amount is so heavy that it endangers life. Young patients also have symptoms such as prolonged menstruation, shortened menstrual cycle, increased menstrual flow, etc. Elderly patients often have postmenopausal vaginal bleeding, which may be less or more.
3. Systemic symptoms: In the late stage, patients often have clinical manifestations such as weight loss, anemia, fever, systemic exhaustion, cachexia, etc. in addition to secondary systemic symptoms such as uremia.
4. Compression symptoms: In the late stage of cervical cancer, various compression symptoms may appear due to the enlargement of the tumor. Pain is one of the common compression symptoms.
5. Metastasis symptoms: In addition to lymph node metastasis, lung metastasis and bone metastasis are more common. These are the main symptoms of cervical cancer.