Symptoms depend on where the metastases are located. Prostate cancer typically spreads to the bones or nearby lymph nodes, and less commonly to other internal organs. Read on for more information about the most common symptoms caused by metastases.
Bone pain and other symptoms related to bone metastases
Since bone metastases are very common in metastatic prostate cancer and tend to cause pain, especially when moving, pain relief is an important consideration. The aim is to maintain functional capacity so that the patient can cope with daily activities without being limited by pain. Both pain medicines and radiation therapy are effective. Bone metastases occurring in prostate cancer are also treated with radioisotopes. These are radioactive substances that collect in the bones and treat the skeleton with short-range radiation therapy. Radioisotopes are given into a vein as an outpatient procedure carried out by a cancer treatment unit.
Bone metastases can also cause fractures, and metastases in the spine can press on the spinal cord. These situations call for acute medical attention.
In the case of widespread bone metastases, bone marrow function may be disrupted, leading to low haemoglobin levels (anaemia). Symptoms may include fatigue, shortness of breath on exertion, and in those with heart disease, chest pain. These symptoms may have many different causes, which is why it’s good to bring them up with your attending physician. Sometimes anaemia is treated with interventions such as red blood cell transfusions.
Symptoms caused by tumours in the pelvic area
If cancer spreads to local lymph nodes in the pelvic and abdominal area, it may not show any symptoms for a long time. The metastases may interfere with the lymphatic flow, leading to swelling (oedema) in the legs. Oedema can be treated with compression products (socks) or bandages. If an enlarged lymph node is causing problems such as pain or obstruction in the ureter or lymphatic system, radiation therapy may be used to shrink it. Obstruction of the ureter may also be treated by placing a ureteral catheter during a bladder examination procedure (cystoscopy), or by placing a small tube through the skin and into the kidney (percutaneous nephrostomy).
Locally recurrent prostate cancer, and in some cases, local treatments targeting the prostate (surgery, radiation therapy), may cause difficulty with urination or problems with the rectum. In such cases, it’s good to bring this up with the attending physician, since many of these problems can be managed.
Psychological strain
Having an illness puts strain on the mind too. Living with a long-term illness includes both good and bad moments. It’s good to talk to the care team about how you’re coping mentally. Depression and anxiety can be managed both by talking and with medication. Peer support may also be helpful.