The sudden increase in urination (peeing more often) can have many causes. Common reasons include:

• Urinary tract infection (UTI), which causes frequent urination often with burning, urgency, and cloudy or strong-smelling urine.
• Overactive bladder, where bladder muscles contract too often, causing urgent, frequent urination.
• Drinking too much fluid, including caffeine or alcohol, which act as diuretics and increase urine production.
• Diabetes (both type 1 and type 2), where high blood sugar leads to increased thirst and urination.
• Enlarged prostate in men, which affects urine flow and bladder emptying.
• Pregnancy, especially in later stages, which puts pressure on the bladder.
• Other causes include bladder stones, kidney infection, interstitial cystitis, certain medications (diuretics), neurological conditions, or bladder cancer.

If this sudden frequent urination is accompanied by symptoms like pain, discomfort, fever, blood in urine, or if it disrupts sleep significantly, it is important to see a healthcare professional to identify the exact cause and get proper treatment.