The incidence rate increased with age. Half of the prostate more than 80 years old had cancer lesions, but the actual clinical onset was far lower than this. There were obvious regional and racial differences in prostate cancer. In the Israeli, my country and Japan and other countries are regions of prostate cancer, but the number of lurking cooles in the prostate section of the prostate section of the prostate section of male corpses over 50 years of age is similar to that of European and American. few.In addition, prostate cancer is also related to the environment.
Common manifestations of prostate cancer
In the early stages of prostate cancer, due to tumor limitation, most patients with prostate cancer did not have obvious symptoms. They often discovered accidentally during medical examinations, and can also be found in the benign prostate hyperplasia surgical specimen.
With the continuous development of tumors, prostate cancer will have a variety of different symptoms, mainly in 3 aspects:
1. Blocking symptoms: Difficulty urination, urinary retention, pain, hematuria or urinary incontinence.
2. Local infiltration symptoms: The bladder rectal gap is often involved first. This gap includes the structure of the prostate, seminal vesicles, vasters, and lower end of the ureter, such as tumor violations and compression of the vas The vascular tubes can cause low back pain in the patient and the patient's side testicles pain.Patients also complained that ejaculation hurts.
3. Other metastases: Bone metastases are prone to prostate cancer, and there may be no symptoms at first. There are also prostate cancer when they are caused by nerve compression or pathological fractures caused by bone metastases.
98%of prostate cancer are adenocarcinoma and about 2%are squamous carcinoma.75%originated from the peripheral zone, 20%originated in the movement belt, and 5%originated in the central zone.The staging of prostate cancer is as follows:
T1: T1A clinical negative, TUR specimen cancer accounts for less than 5%of the total volume; T1B clinical negative, TUR specimen cancer accounts for more than 5%; T1C clinical negative, PSA> 4 & mu; g/L, biopsy confirmed cancer.
T2: T2A is limited to 2 leaves; T2B is limited to 2 leaves.
T3: T3A through the paddy cavity; T3B invades seminal vesicles.
T4: Invasion of surrounding organizations.
N: N0 lymph nodes have no metastasis; N1 pot lymph nodes transfer; N2 lymph nodes transfer.
M: M0 has not been seen in the distance; M1 distant organs transfer.
Prostate cancer is divided into two grades in the main and secondary grades according to gleason, and the cancer cells are divided into 1 to 5 points.The scores of the two levels are added, with a total of 2 to 4 points of differentialization of cancer, 5-7 points of medium differentiation, and 8-10 are bad cancer.
Most of the prostate cancer arerogensive dependencies, which are closely related to the relationship between the occurrence and development of the androgen. Non -hormonal dependencies accounted for only a few.Prostate cancer can be performed through local, lymph and blood proliferation, and blood rows are most common.
How to prevent prostate cancer?
Recently, with the rapid development of China's economy, the improvement of living standards, changes in diet structure, the gradual aging of society and the improvement of diagnosis and treatment technology, the incidence of prostate cancer in China has also shown a significant increase.How to prevent prostate cancer in daily life is a question that everyone is very concerned about.
1. Eat more cross flower vegetables
Pea, broccoli, and broccoli are representative vegetables in cruciferous vegetables. Studies have found that men who eat more cross flower vegetables are less likely to have prostate cancer.
2. Consume more bean food
Researchers pointed out that in Asian regions with more soy foods, the incidence of prostate and bowel cancer is far lower than Europe and the United States.Those men who often contain soy foods in daily diet are 26%lower than men who do not eat soy foods.
3. Eat more tomatoes, carrots and watermelons
Tomatoes and watermelon contain a large amount of lycomypee, and it is reported that the incidence of prostate cancer can be reduced by 32%.The lycopene contained in a one -inch watermelon is equal to four tomatoes.A large amount of & beta in carrots; carotene it can help your body absorb lycopene in tomatoes.
4. Eat more fruits containing high vitamin C, such as oranges.
Studies have found that a diet containing a large amount of vitamin C will reduce the chance of prostate cancer by 23%.
5. Proper selenium
A piece of chicken breast is enough to provide you with selenium you need.A piece of data shows that the possibility of dying of prostate cancer for 41 consecutive years of supplementation of sufficient selenium is 63%lower than prostate cancer.All -wheat corn cake contains selenium and a large amount of fiber.Canadian researchers have found that foods containing sufficient solubility cellulose can reduce PSA levels in the body.
6. Proper sports and maintain a healthy weight
The survey found that if men swim for 30 minutes a day, the possibility of patients with advanced prostate cancer will be greatly reduced.Scientists said that swimming can improve disease resistance, promote the local blood and lymphatic circulation of the prostate, and help the inflammation of the prostate.In addition, swimming can help patients with prostate cancer better absorb drugs, thereby improving the efficacy of drugs, which is also good for symptoms such as neurological disorders and neurasthenia.
Scientists suggest that men should persist in swimming for about half an hour a day.However, men engaged in cycling and gymnastics have a relatively high probability of prostate cancer than 30%higher than the former.So try to avoid competitive sports.
7. Follow the sunlight
In the survey survey, it was also found that elderly men living in the northern latitude areas have died more than prostate cancer.This has something to do with the low content of vitamin D in their bodies
It is best to take 10 minutes to expose the sun every day to help the human body naturally generate sufficient vitamin D.
(Editor in charge: Zheng Guisheng)
