What's causes the smelly of urines?

The smell of urine is primarily caused by the presence of waste products and chemicals that are excreted from the body. These waste products can include ammonia, urea, and bacteria. The smell of urine can also be influenced by factors such as diet, hydration levels, and certain medical conditions. In some cases, a strong or foul-smelling urine odor may be a sign of a urinary tract infection, dehydration, or other underlying health issues.

- Ammonia: This is the most common cause of smelly urine. It is produced when urea, a waste product from protein metabolism, is broken down by bacteria in the bladder. The more concentrated the urine, the more ammonia it will contain and the stronger the smell will be.
- Other nitrogenous compounds: These compounds, such as urea and creatinine, can also contribute to the smell of urine.
- Foods: Certain foods, such as asparagus, garlic, and onions, can cause urine to smell stronger.
- Medications: Some medications, such as antibiotics and vitamins, can also cause urine to smell different.
- Medical conditions: Certain medical conditions, such as urinary tract infections (UTIs) and diabetes, can also cause urine to smell stronger.