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Dr. Mark Grenitz

Obstetrics and Gynecology
Plantation, FL
10 years experience

Locations

Office

Plantation, FL

Address

220 SW 84 Avenue, Suite 105, Plantation, FL
Directions

Practice website

About

Bio

Mark is a graduate of The University of Miami School of Medicine and completed his residency training at The Albert Einstein College of Medicine. He has been in private practice since July 1990. He currently teaches PA Students at Kaiser University along with his OB/GYN practice

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Obstetrics and Gynecology

Languages spoken

English

Doctor Q&A

61 Answers
0 Agrees
The number of answers this doctor has agreed with.
A 18-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
About 6 weeks: If you conceived on december 27, that was 4 weeks and 3 days ago, making you 6 weeks, 3 days pregnant with a due date of september 20, 2014 because we... Read More
A 31-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Yes and No: Placental insufficiency usually relates to the third trimester of pregnancy. A placenta that doesn't work well could cause a miscarriage but it would ... Read More
A 22-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No: Quitting, however you do it, is better for the baby than continued smoking. Once you quit, don't start again because second-hand smoke is bad for chil... Read More
A 23-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Need labs: A blood pregnancy test is needed. A pregnancy that is not normal could cause these symptoms and the pregnancy hormone level may not be high enough to ... Read More
A 26-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
EC: Ec (emergency contraceptiion) is used after this type of accident. Ec pills are available in the usa to anyone over 18 without a prescription. You sho... Read More
A 47-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Side effect OCP: Common side effects include: nausea, breast tenderness, headache, abdominal pain, bloating, swelling, weight changes, emotional changes and dark patch... Read More
A 39-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Levonrogestrel: No, they are not. Norgestrel contains both levo and dextro norgestrel so they are not equivalent.
A 25-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
A bit worried: Cramping in your lower abdomen may be a sign of preterm labor. If it persists for more than 1-2 hours, you should be evaluated at the hospital. The we... Read More
A 37-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Prevent conception: Emergency contraceptive pills work by keeping the egg from being released by the ovary or by keeping the sperm and egg from getting together. Current ... Read More
A 29-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Fear is not rational: There are many factors that cause people top fear this vaccine. The truth is that the hpv vaccine is not a new technology. It is the same technology a... Read More
A 24-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
You need to see doc: There are many possible causes of sharp pains in the pelvis. Some are not serious but some are. The best approach to pain that or interferes with you... Read More
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Several possible: Thyroid problems, high prolactin levels and polycystic ovary syndrome are some possible causes. You need to see your doctor for testing and treatment.... Read More
A 36-year-old male asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Yes: The vaccine is safe for women of all ages. It protects against human papilloma virus (hpv). It is most effective if given before any sexual activity. ... Read More
A 47-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No special prep need: There is no special preparation needed for mammography. If you have sensitive or tender breasts it may be best to schedule your mammogram on day 6-10 ... Read More
A 23-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No: Antibiotics should not affect a normal menstrual cycle. Some antibiotics can interfere or interact with the birth control control pill and could affec... Read More
A 19-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Yes: Missing moire than one pill in a pack does leave you at risk for pregnancy. If you have not resumed the pill, wait for a period. If your period is not... Read More
A 19-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
See a Doctor: You have both prolonged periods and post-coital (after sex) bleeding. These both require evaluation by a gynecologist. There are many treatment option... Read More
A 25-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
See a Doctor: Drinking 2.5 to 3 glasses of wine a day is a sign of possible alcoholism. I suggest you be evaluated before you get pregnant. Alcohol use in that amou... Read More
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No: A simple urinary tract infection should not delay your period. If you are late for your period, take a pregnancy test and/or see your gynecologist.
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Every other day: With a 28 day cycle, the best way to conceive is to have intercourse every other day starting on day 9 or 10 through day 19 or 20. (day one is the fir... Read More
A 40-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Ice and Bind Them: You are probably experiencing breast engorgement. This means the breasts are full of milk. Put ice or cold packs on your breasts and wear a tight spor... Read More
A 18-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Adjusting to pill: It can take 3-4 cycles to adjust to the pill. Your period should start during the "placebo" days when the pills have no medicine in them. If, after th... Read More
A 19-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Maybe: It is best to start emergency contraception as soon as possible after unprotected sex. If started within 72 hours, it is highly effective. It may stil... Read More
A 24-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Relax a little bit: Bleeding (even light spotting) during pregnancy is never normal but is often not a sign of a serious problem. If you recently had intercourse that cou... Read More
A 36-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Breasts and OCP: All combination hormonal contraceptives can cause an increase in breast size.
A 40-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
OCP efficacay: The best information I have says it does not.
A 40-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Birth control option: Unless you smoke or suffer from heart disease, you can take hormonal contraception until menopause. If you prefer not to use something every day you m... Read More
A member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Miscarriage or late: It is difficult to know if this is a miscarriage or late period. I suggest a visit with your gynecologist for a blood pregnancy test and further evalu... Read More
A 41-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Yes: The vaccine is now approved for young men. As with women, it is best to be vaccinated before any sexual activity.
A 43-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Blood in Stool: The most common test would be for blood in the stool. This can be a sign of colon polyps or cancer. It is also possible to test for certain types of i... Read More
A 32-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Every year after 40: The current screening mammography guidelines for low-risk women are for mammography every year after age 40. These guidelines have not changed on many... Read More
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Not yet: It may not be a yeast infection. See your gyn provider to check for other types of vaginitis. Bacterial vaginosis is another common vaginal issue and ... Read More
A 27-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
See a Doctor: If your cycles are that far apart, there may be a problem with your egg production and this should be evaluated by your gynecologist. If you truly ovu... Read More
A 27-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Tampon?: Try inserting a tampon then see if there is blood in the urine or if the blood is on the tampon. If the pain is new, it should be evaluated.
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Tylenol (acetaminophen): Tylenol (acetaminophen) or Acetaminophen is generally considered safe during pregnancy.
A 31-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Now: If you were ovulating when you had intercourse three weeks ago and you conceived, a home pregnancy test should be positive now.
A 20-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Now: Pregnancy test now. It is common for the first cycle off the pill to be a couple of weeks late. If negative, wait a week and take another. If still ne... Read More
A 22-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
None: There is essentially no chance of getting HIV from a toilet. The same goes for most other sexually transmitted diseases. Most viruses and bacteria die... Read More
A 25-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
There are many: There are many things that can cause you to skip periods. The most common (besides pregnancy) are thyroid imbalances, high prolactin levels and menopa... Read More
A 26-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No harm: When taken correctly, the emergency contraceptive pills usually prevent pregnancy. If you do get pregnant, having used the emergency contraceptive pil... Read More
A 35-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Aspiration of cysts: Aspiration of the larger cysts might be a good alternativeto surgery. It may alleviate pain. Avoid caffeine as this often causes beat pain or males i... Read More
A 45-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Take within 72 hours: The sooner after the "accident"the better. Start them within 72 hours (3 days). Take them exactly as the package directs and make sure you read all of... Read More
A 45-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Exam to estimate: The only way to be sure your pelvis is big enough for your baby is to try to push the baby through it at the end of labor. The size can be estimated b... Read More
A 48-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Additional tests: In most cases, additional mammogram views or an ultrasound of the area or both will be the next step. It is important not to delay follow-up on abnor... Read More
A 37-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
HPV: Cervical cancers are almost all caused by human papilloma virus (hpv). This is a sexually transmitted virus. It is very common, infecting over 80% of ... Read More
A 21-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
It causes vomiting: Metronidazole and tinidazole, the most commonly used treatments for bv, cause vomiting when combined with alcohol. Sometimes, the reaction can be quit... Read More
A 45-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Breathe thru nose: Try taking rapid shallow breaths in and out of your nose while the mold is in your mouth. Do not breathe through your mouth or try to swallow.
A 43-year-old member asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Yes: Microcalcifications on a mammogram can be a sign of cancer and need follow-up. Magnification mammography can be helpful in evaluating calcifications f... Read More
A 53-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
Probably not: The ureters are close to the lower uterus and cervix. Near the kidneys they are much farther from the uterus and therefore less likely to be injured. ... Read More
A 31-year-old female asked:
Dr. Mark Grenitz
Obstetrics and Gynecology 10 years experience
No: It is not normal to be 20 days late. Pregnancy must be ruled out. Other causes for late periods include thyroid problems, high prolactin levels and pc... Read More

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

4
Recommendations
190
Thank you notes
Jan 16, 2013
Dr Grenitz is a wonderful OBGYN!
HealthTap member
Nov 4, 2012
Excellent Doctor. He delivered my son and I was very please with him and the entire office.
HealthTap member
Mar 30, 2015
Dr. Grenitz is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thank you, your answer was very helpful! Thanks very much I do appreciate your answer and it has certainly help ein making my decision concerning my fibroids problem. Thanks again.
HealthTap member
Thank you, your answer was very helpful! Thnx a bunch, this was very helpful .
HealthTap member
Have seen many doctors who ran test and cant seem to find anything.
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less