So what is a urinary tract infection?
Few infections are as common in women. It starts when germs from the digestive tract, E. coli more often than any other, slip into the urethra and multiply in the bladder. Signs include a burn or ache when you urinate, pressure in the lower belly or pelvis, needing to go often and urgently, passing very little, and urine that turns cloudy or smells strong. Women have a shorter urethra, so they get UTIs far more often than men. A brief antibiotic course, usually 3 to 5 days, clears most uncomplicated bladder infections quickly. Read more about UTI symptoms.
How an online UTI prescription works
Your secure online form covers the pharmacy you prefer, what you are feeling, earlier urinary tract infections, medications, allergies, and any chance of pregnancy. A Massachusetts-licensed physician goes through all of it and may message you for more detail. If the picture fits an uncomplicated bladder infection with no safety concerns, a prescription can go out electronically, and same-day pickup is possible in most cases.
Approval is never automatic. In-person care or testing may be the better recommendation when your answers raise pregnancy, signs of a kidney infection (chills, fever, flank or back pain), recurrent UTIs, a medication allergy, a possible sexually transmitted infection, an unclear diagnosis, or some other complication.
Pharmacy pickup
Physician-reviewed
Full refund if not prescribed
What Massachusetts resistance data shows for UTI antibiotics
The Massachusetts Department of Public Health publishes a statewide antibiogram, a tally of how bacteria in hospital labs respond to antibiotics. The 2022 report drew on 59 acute care hospitals and 94,757 E. coli isolates. Of those tested, 78 percent were susceptible to trimethoprim-sulfamethoxazole, the drug in Bactrim. Among E. coli from urine, 97 percent were susceptible to nitrofurantoin. The report pools inpatients and outpatients and says its data are not intended for clinical decision making, so read these figures as background. They can't tell you which drug is right for you. Your physician chooses based on your allergies, your history and past UTIs.
Who an online visit suits
Telehealth may be appropriate for an adult woman with textbook bladder infection symptoms, such as a burn when urinating, lower-belly pressure, or going often and urgently. It suits you especially if you have been through a UTI before and recognize how one starts.
STIs and other conditions can mimic a UTI, so your whole intake gets read before any decision on antibiotics. If you can't tell what this is, the free UTI symptom checker is a good first stop, and so is our page on how a UTI differs from BV and a yeast infection.
When an exam comes first
A questionnaire can't replace an exam in some cases. Go in person for any of these.
- A possible kidney infection: fever, chills, nausea and vomiting, or pain in the back or flank
- You are pregnant, could have a sexually transmitted infection, or have a new or uncertain diagnosis
- Your UTIs are recurrent, or a couple of days of antibiotics have not helped
How to tell a UTI has turned serious →
The three first-line antibiotics
Physicians commonly work from nitrofurantoin (Macrobid), fosfomycin (Monurol), and trimethoprim-sulfamethoxazole (Bactrim) for an uncomplicated UTI. CDC guidance and the IDSA uncomplicated-cystitis guideline back those choices. Expect nitrofurantoin as 100 mg twice daily for five days. Bactrim, where local resistance is low, means one double-strength tablet twice daily for three days. Fosfomycin is a single 3 g dose of granules you stir into water. Which one you get, and for how long, depends on your kidney function, allergies, symptoms, pregnancy status, and earlier treatment.
Mild nausea or stomach upset are the usual side effects. A sulfa allergy takes Bactrim off the table, so say so up front, along with any other antibiotic allergy. Kidney trouble matters as well, because nitrofurantoin is avoided with reduced kidney function or close to full-term pregnancy. Finish every pill even when you feel better. Our full guide to UTI antibiotics and treatment →
Why UTIs happen
Germs from your bowel or skin find the urethra and work their way up to the bladder. Risk rises with a new partner, sexual activity, a diaphragm or spermicide, postmenopausal changes, and holding your urine, and a shorter urethra makes women more prone to begin with. Two myths worth dropping: UTIs are not caused by poor hygiene, and a UTI is not an STI. Hydration and peeing after sex may help reduce risk. Once symptoms are established, though, antibiotics are usually needed. More on what causes UTIs and how to prevent them.
If your UTIs keep returning
The working definition of recurrent is two or more infections in six months, or three or more in a year, and it is common. A flare with the old, familiar bladder symptoms can often be handled online the same day, with a Massachusetts-licensed physician treating that acute episode. Repeat infections also deserve a bigger look, perhaps a urine culture, a risk factor review, or a preventive (prophylactic) plan, and that work usually sits with a urologist or primary care clinician you see in person. Recurrent UTIs in more depth →
