What causes right kidney area pain during the second trimester of pregnancy, and what should be done about it?

Pain in the right kidney area during the second trimester of pregnancy may be caused by muscle or ligament strain, urinary tract infection, kidney stones, pyelonephritis, or hydronephrosis. It can be treated through lifestyle adjustments and medication. Specific details are as follows:

1. Muscle or ligament strain: During pregnancy, a woman's body undergoes many changes, and muscles or ligaments may become strained or overused, leading to pain. This type of pain is usually mild and can be relieved through rest, maintaining proper posture, and applying heat therapy.

2. Urinary tract infection (UTI): UTIs are common in pregnant women due to hormonal changes and uterine enlargement, which increase susceptibility to infection. If the infection spreads upward, it may cause pain. Drinking plenty of water is recommended to help flush out the urinary tract and eliminate bacteria.

3. Kidney stones: Kidney stones are a common cause of right-sided flank pain during pregnancy. Stones form in the kidneys and may obstruct the urinary tract, causing renal area pain. Treatment may include medications such as potassium sodium citrate granules or lithiasis-relieving granules, under medical supervision.

4. Pyelonephritis: This condition is a kidney infection typically caused by bacteria entering the urinary system, resulting in pain in the lower back or abdomen. Treatment should be guided by a healthcare professional, and medications such as cefixime capsules or minocycline hydrochloride capsules may be prescribed.

5. Hydronephrosis: During pregnancy, hydronephrosis may occur when an enlarged uterus compresses the ureter, preventing normal urine drainage from the kidneys and leading to dilation of the renal pelvis and ureter, which causes pain. Mild cases may be managed with observation and regular ultrasound monitoring. Severe cases may require drainage via catheterization or surgical intervention.

If the pain persists or becomes severe, immediate medical attention is recommended.