The disease that affects the excretory system is due to urinary tract infection (UTI). Charles is most likely suffering from UTI as he is having difficulty urinating. Thus, it is a problem.
What is a urinary tract infection?
Urinary tract infection (UTIs) is an infectious disease that affects the urinary tract, bladder, urethra, and kidneys. At first, they affect just the urethra but severe conditions may lead to infection of the kidneys.
It leads to pain in the pelvic area, frequent urination, blood discharge in urine, nausea, back pain, vomiting, shivers, change in urine color and odor, etc. It causes an immense burning sensation and specifically at night. UTIs can be treated with antibiotics and painkillers.
Therefore, Charles having difficulty in urinating is probably suffering from a urinary tract infection.
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