What is the difference between bladder infections, vagina infections, and cervical cancer?

like the symptoms and what happens and changes in your body.

or yeast infection??

Bladder infection (Cystitis), Urinary Track Infections (UTI) -
--Usually, bacteria are the cause of cystitis.
--A frequent need to urinate and pain or burning while urinating are the most common symptoms.
--Doctors can base the diagnosis on the symptoms, but they usually examine a urine specimen.
--Drugs are needed to treat the infection and often the symptoms.

There are a number of reasons why women are susceptible, including the short length of the urethra and the closeness of the urethra to the vagina and anus, where bacteria are commonly found. Sexual intercourse can contribute, too, because the motion can cause a tendency for bacteria to reach the urethra, from which they ascend to the bladder. Pregnant women are especially likely to develop cystitis because the pregnancy itself can interfere with emptying of the bladder.

Vaginal infections - two most common (not including STDs) are Yeast Infections and Bacterial Infection

Signs of yeast infections:
White, cottage cheese-like discharge
Swelling and pain around the vulva
Intense itching
For about 1 out of 3 or 4 women a yeast infection can go away on its own just after her period due to a pH change in her vaginal area. Monistat is commonly used to treat a yeast infection and can be bought (in the USA) over-the-counter at any drug or grocery store.

Signs of bacterial vaginosis:
A white, gray or yellowish vaginal discharge
A fishy odor that is strongest after sex or after washing with soap
Itching or burning
Slight redness and swelling of the vagina or vulva
See a doctor for treatment.

Cervical cancer is malignant cancer of the cervix uteri or cervical area. It may present with vaginal bleeding but symptoms may be absent until the cancer is in its advanced stages. Hence the need for yearly exams and pap smear tests.