13 Prostate Cancer Symptoms

2. Difficulty Starting Urination

You may notice that it takes longer to begin urinating, even when you feel the urge to go. This delay often happens when the flow of urine is slowed or blocked. One common reason for this symptom in men is changes in the prostate, especially with aging.

Prostate cancer often begins in the outer part of the prostate, so it may not affect urination right away. As the prostate enlarges, however, it can press on the urethra and make it harder for urine to pass. When this happens, you may need to strain to start urination or feel as though your bladder is not completely empty afterward.

Other common experiences include waiting several seconds before urine starts to flow, having a weak or interrupted stream, or feeling the need to push to begin. Difficulty starting urination can also be caused by noncancerous conditions, such as an enlarged prostate or an infection.

3. Weak Flow of Urine

You may notice that your urine stream is weaker or slower than usual. This often happens when the passage that carries urine from the bladder becomes narrowed or partially blocked. In many men, the prostate plays a role.

The prostate sits just below the bladder, and as it grows larger, it can press against the urethra and restrict urine flow. As the flow becomes weaker, you may notice changes such as a delay when starting to urinate, a stop-and-start stream, or the need to strain. Some people also notice the stream splitting or spraying. These changes often develop gradually, making them easy to overlook at first.

A weak urine flow can also leave you feeling as though your bladder is not completely empty. You may need to urinate again shortly after finishing because the bladder has to work harder to push urine through the narrowed passage.

4. Feeling Like the Bladder Isn’t Fully Emptied

You may notice that after urinating, it still feels as though your bladder is not completely empty. This sensation can be uncomfortable and frustrating, often making you feel the urge to go again soon after finishing or causing you to strain to release more urine.

This feeling usually happens when urine flow is weak or when the bladder does not empty fully. As the prostate grows larger, it can press against the urethra and restrict the normal passage of urine. When this happens, urine may remain in the bladder, leading to a persistent feeling of fullness or pressure in the lower abdomen.

Over time, incomplete emptying can result in repeated trips to the bathroom. You may notice that your urine stream stops and starts, feels weaker than usual, or that you need to urinate again shortly after finishing.

5. Blood in the Urine

Blood in the urine can be an early sign that something is not right with the urinary system. When urine appears pink, red, or brown, it means blood is mixing with it. This blood may be visible, or it may be present in such small amounts that it can only be detected through testing. In men, prostate cancer is one potential reason, but it is not the only one.

Infections of the bladder, kidneys, or prostate can also cause bleeding. Other causes include kidney or bladder stones, inflammation, or injury to the urinary tract. In cases related to prostate cancer, small blood vessels in the prostate may be affected by tumor growth, allowing blood to leak into the urine.

As the prostate enlarges and presses on the urethra, urination may become painful or difficult. You might also notice a weak urine flow or feel as though your bladder does not fully empty. Urinalysis and imaging studies can help check for infection, stones, or abnormal tissue changes.

6. Blood in the Semen

Seeing blood in your semen can be alarming, but it does not always mean something serious. The color may appear bright red if the bleeding is recent or brownish if it occurred earlier. In some cases, small clots may also be visible.

Common causes include swelling or infection in the prostate or nearby glands, irritation of the urethra, or injury from a recent medical procedure. Sometimes, the cause is unknown and the condition resolves on its own without treatment. You may also notice pain when urinating or ejaculating, discomfort in the lower back or pelvis, or a frequent need to urinate.

While these symptoms are commonly linked to noncancerous conditions, they can occasionally be associated with more serious issues such as an enlarged prostate or, less often, prostate cancer. If blood in the semen appears more than once or continues for several weeks, seeking medical attention is important.

7. Pain in the Back

Pain in the back that does not go away can be an important sign to pay attention to. This pain often appears in the lower back, hips, or pelvic area and is usually dull or constant rather than sharp or sudden. Some men notice that the discomfort becomes worse when sitting or lying down for long periods, especially at night.

When prostate cancer spreads, it may move into nearby bones in the lower spine or pelvis. This can lead to persistent pain that feels different from common muscle strain or a typical back injury. Unlike muscle-related pain, this discomfort often does not improve with rest, stretching, or basic pain relief methods. Back pain that lasts for several weeks, spreads to the hips or pelvic area, worsens at night, or does not respond to routine care may signal a more serious issue.

8. Pain While Ejaculating

Pain while ejaculating can be an early warning sign that something is not right with the prostate. The discomfort may range from a dull ache to a sharp pain felt during or shortly after ejaculation. It often occurs in the lower pelvis, behind the scrotum, or near the base of the penis.

This symptom usually develops when the prostate becomes swollen, irritated, or enlarged. Pressure on nearby nerves and tissues, along with inflammation or infection in the prostate or surrounding glands, can trigger pain. In cases where prostate cancer is present, growth of the prostate may block the ducts that carry semen, creating painful pressure during ejaculation.

You may also notice other related symptoms, such as burning during urination, a weak urine stream, or pain in the lower back or hips. While prostate cancer is one possible cause, infections and physical injuries can also lead to similar symptoms and should be evaluated.

9. A Decrease in the Amount of Ejaculated Fluid

You may notice a decrease in the amount of semen released during ejaculation. This change often happens gradually and can be easy to overlook at first. In some men, it may be an early sign of prostate-related problems, including prostate cancer.

The prostate plays an important role in producing the fluid that mixes with sperm to form semen. When cancer affects the prostate, the gland may not function as effectively. Swelling, blockage, or damage to surrounding tissues can reduce the amount of fluid produced and released during ejaculation.

A lower volume of ejaculated fluid does not always mean cancer. It can also occur with aging, after prostate surgery, or as a side effect of certain medications, including those used to manage high blood pressure or depression.

10. Pain in the Groin

Pain in the groin can sometimes be a sign that something is affecting nearby tissues or lymph nodes. You may notice a dull ache or pressure where the lower abdomen meets the upper thighs. Some men feel the discomfort on one side, while others notice it on both sides.

This pain may come and go or remain constant over time. It can also spread toward the lower back, hips, or thighs. You might feel soreness when walking, sitting for long periods, or during physical activity. Pain that worsens, lingers, or has no clear cause is worth paying attention to.

In some cases, groin pain can be linked to prostate cancer, especially if the disease spreads beyond the prostate. However, this symptom does not always mean cancer. Muscle strain, infections, or other conditions involving the urinary or reproductive system can also cause groin discomfort.

11. Pain in the Upper Legs

Pain in the upper legs can sometimes indicate that prostate cancer has spread beyond the prostate gland. This type of pain often develops gradually and may feel dull or heavy. It can affect one or both legs and may become worse when walking or sitting for long periods.

As the condition progresses, you might notice additional sensations such as weakness, tingling, or stiffness in the thighs. These symptoms can occur if cancer presses on nearby nerves or bones in the pelvic area. However, upper leg pain does not always point to cancer.

Muscle strain, arthritis, or circulation problems can also cause similar discomfort, so it is important not to assume the cause. New, persistent, or worsening pain should be checked to determine whether it is related to prostate cancer or another condition.

12. Fatigue and Weakness

You may notice feeling unusually tired even after getting enough rest. This type of fatigue can last throughout the day and make regular activities feel more difficult. In some men, the tiredness develops gradually and becomes more noticeable over time.

Prostate cancer itself can contribute to fatigue because the body uses extra energy to respond to the disease. Cancer-related inflammation may drain energy reserves, while treatments such as radiation therapy or hormone therapy can further affect how the body produces and uses hormones. These changes may lead to muscle weakness and reduced physical stamina.

Low red blood cell levels can limit oxygen delivery to muscles, making even short walks or daily tasks feel exhausting. Changes in appetite or ongoing sleep problems can also reduce energy levels. Resting when needed is important, but staying lightly active can help maintain muscle strength and prevent further weakness.

13. General Malaise

General malaise is a vague but noticeable feeling that something is not quite right in the body. You may experience ongoing tiredness, weakness, or a general sense of feeling unwell. This feeling can come and go or remain constant, depending on how your body responds.

This sense of malaise can affect daily life by reducing interest in normal activities. You may find it harder to keep up with work or hobbies because of the general sense of illness and low energy. Some men also report mild fever, sleep problems, or an unsettled feeling that does not have a clear cause.

These symptoms can occur as the body works harder to respond to changes caused by cancer cells and inflammation. When general malaise appears alongside other signs such as pelvic pain or urinary changes, it becomes more important to pay attention.