The clinical manifestations of prostate cancer vary greatly and are related to tumor classification. Latent and hidden types have no local symptoms. The clinical local symptoms are similar to those of benign prostatic hyperplasia.
Symptoms of prostate cancer
1、 The initial patient has no characteristics or symptoms. As the condition progresses, patients may pay attention to
1. Frequent urination and urgency.
2. Urinary accumulation.
3. There is a spicy feeling when urinating.
4. Urinary flow is difficult to form.
6. Urinary pain.
7. Bone pain, etc.
2、 Some people also have no symptoms in the early stages. Symptoms only appear when cancer causes obstruction of the bladder neck and urethra, and some patients seek treatment based on metastatic symptoms, such as low back pain and sciatica. Therefore, prostate cancer should be excluded for metastatic cancer with unknown primary focus in males. When it invades the bladder neck and urethra, there will be symptoms of urethral stricture, such as frequent urination, urgency, painful urination, hematuria, and difficulty urinating. The patient has chronic wasting symptoms, such as weight loss, weakness, anemia, etc.
Causes of prostate cancer
Age is the cause of prostate cancer. Prostate cancer is rare in men under 45 years old, but with the growth of age, the incidence rate of prostate cancer rises sharply, and most patients with prostate cancer are over 65 years old. Basically, the incidence rate of prostate cancer almost doubled every 10 years after the age of 40. The incidence rate of prostate cancer among African Americans is very high, followed by Hispanics and white Americans. The incidence rate of prostate cancer among African blacks is very low worldwide. The incidence of prostate cancer in Asian men living in the United States is lower than that of Caucasians, but significantly higher than that of native Asian men.
The occurrence of diseases is also indirectly related to the quality of the environment. Cadmium pollution in the air can increase the probability of men developing prostate cancer, so it is very important to stay away from pollution and live in a good environment. Long term, chronic bacterial and viral infections significantly increase the chances of prostate cancer visits.
If there is a sick family in the family, men are more likely to get sick than other ordinary people. Among many patients, family medical history accounts for about 9% of the diseases. When the direct male relatives in the family suffer from prostate cancer, the male incidence rate of the family increases significantly. Direct male relatives generally refer to fathers and brothers. If one of the immediate relatives has prostate cancer, the probability of developing prostate cancer will be twice that of the general population, and if there are two, it will be three times higher. This indicates that the occurrence of prostate cancer may be related to one or more genes in the body, but these genes have not yet been fully determined by scientists.