Pregnancy-Related Urinary Tract Infection
What is Pregnancy-Related Urinary Tract Infection?
A pregnancy-related urinary tract infection is a bacterial infection that occurs in the urinary system during pregnancy. The infection can affect the bladder, urethra, or kidneys. During pregnancy, your body goes through changes that make UTIs more common and potentially more dangerous.
Your growing uterus puts pressure on your bladder, making it harder to empty completely. Leftover urine creates an environment where bacteria can grow. Hormonal changes also relax the muscles in your urinary tract, slowing urine flow. These factors combine to increase your risk of infection during pregnancy.
UTIs during pregnancy are not just uncomfortable. They can lead to serious complications including preterm labor, low birth weight, and maternal sepsis. This is why screening for UTIs is recommended during all three trimesters. Early detection and treatment protect both you and your baby.
Symptoms
- Burning sensation when urinating
- Frequent urge to urinate with little urine produced
- Cloudy, dark, or strong-smelling urine
- Pelvic pain or pressure in the lower abdomen
- Blood in the urine
- Fever or chills if infection spreads to kidneys
- Back pain or side pain below the ribs
- Nausea or vomiting
Some pregnant women have no symptoms at all, especially in early stages. This is called asymptomatic bacteriuria. It affects up to 10% of pregnancies and still requires treatment to prevent complications.
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Causes and risk factors
UTIs during pregnancy are caused by bacteria entering the urinary tract. E. coli is responsible for about 80% of cases. Other bacteria like Group B Streptococcus and Klebsiella can also cause infections. Bacteria normally live on your skin and in your digestive tract, but problems occur when they reach your urethra and travel upward.
Pregnancy increases your risk through several mechanisms. Higher progesterone levels relax the muscles in your ureters, the tubes connecting kidneys to bladder. This slows urine flow and allows bacteria more time to multiply. Your expanding uterus compresses your bladder, preventing complete emptying. The urine that remains becomes a breeding ground for bacteria. Previous UTIs, diabetes, obesity, and sexual activity during pregnancy also raise your risk.
How it's diagnosed
Doctors diagnose pregnancy-related UTIs through urine tests. A urinalysis checks for signs of infection including white blood cells, bacteria, and nitrites. The leukocyte esterase test detects an enzyme released by white blood cells fighting infection. A positive result suggests bacteria are present in your urinary tract.
Rite Aid offers urine screening that includes the leukocyte esterase test as part of our flagship panel. This test helps detect UTIs early during pregnancy. Your doctor may also order a urine culture to identify the specific bacteria causing infection. This helps determine the best antibiotic for treatment. Most healthcare providers screen for UTIs at your first prenatal visit and throughout pregnancy.
Treatment options
- Antibiotics safe for pregnancy, typically for 3 to 7 days
- Drink plenty of water to flush bacteria from your urinary tract
- Urinate frequently and empty your bladder completely
- Wipe from front to back after using the bathroom
- Urinate before and after sexual activity
- Avoid douches, powders, and feminine hygiene sprays
- Wear cotton underwear and loose-fitting clothing
- Take vitamin C or drink cranberry juice to acidify urine
- Complete the full course of antibiotics even if symptoms improve
- Follow up with repeat testing to confirm infection has cleared
Concerned about Pregnancy-Related Urinary Tract Infection? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
UTIs affect 2% to 10% of all pregnancies. They are one of the most common bacterial infections during pregnancy. Your risk is highest during weeks 6 through 24 of pregnancy. About 20% to 40% of women with untreated asymptomatic bacteriuria will develop a kidney infection.
Yes, untreated UTIs can lead to serious complications for your baby. These include preterm labor, low birth weight, and developmental delays. In severe cases, the infection can spread to your bloodstream causing sepsis. This is why early detection and treatment are essential during pregnancy.
A positive leukocyte esterase test indicates white blood cells are present in your urine. This usually means your body is fighting a bacterial infection in your urinary tract. Your doctor will likely order additional tests like a urine culture to confirm the diagnosis. Treatment typically begins right away to prevent complications.
Many antibiotics are safe to use during pregnancy for treating UTIs. Your doctor will prescribe pregnancy-safe options like amoxicillin, cephalexin, or nitrofurantoin. These medications do not harm your developing baby when used as directed. Always finish the entire course of antibiotics even if you feel better.
Most doctors screen for UTIs at your first prenatal visit. Additional screening may occur during each trimester or if you develop symptoms. Women with a history of recurrent UTIs may need more frequent testing. Regular screening helps catch asymptomatic infections before they cause problems.
You can reduce your risk but not completely prevent UTIs. Drink 8 to 10 glasses of water daily to flush bacteria from your system. Urinate frequently and completely empty your bladder each time. Practice good hygiene by wiping front to back and urinating after sex.
A kidney infection during pregnancy is a serious condition called pyelonephritis. Symptoms include high fever, severe back pain, nausea, and vomiting. This requires immediate medical attention and often hospitalization with intravenous antibiotics. Kidney infections increase the risk of preterm labor and can be life-threatening if untreated.
Recurrent UTIs during pregnancy may occur due to incomplete bladder emptying or resistant bacteria. Your anatomy, sexual activity, and diabetes can also contribute. Your doctor may prescribe low-dose antibiotics for the remainder of your pregnancy. Preventive measures like increased water intake and frequent urination are important.
Yes, this condition is called asymptomatic bacteriuria and affects 2% to 10% of pregnant women. Even without symptoms, the bacteria can cause complications during pregnancy. This is why routine screening is important. Treatment with antibiotics is recommended even when you feel completely fine.
Contact your doctor immediately if you notice any UTI symptoms during pregnancy. Early treatment prevents complications and protects your baby. Seek emergency care if you develop fever, severe back pain, or vomiting. These may indicate a kidney infection requiring urgent treatment.