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Sorting Out Knee Pain
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Help for Hip Pain
Pain in the hip is all too common. Learn about some common causes and how to prevent or treat it.
Simple Ways to Build Strong Bones
Osteoporosis can mean fractures and disability. Three steps you can take right now to strengthen your bones.
Ask an Expert
Katerina P. Shetler, M.D.
Palo Alto Medical Foundation
I was diagnosed with Crohn's Disease two years ago. I recently heard that more harmful bacteria are found in a person with Crohn's than those without this disease. If this is true, is there anything I can do to change the bacteria in my system?
Thank you very much for this question.The intestinal bacteria can play an important role in the development and progression of Crohn's disease. The intestinal microbial community performs a range of useful func... continue reading about I was diagnosed with Crohn's Disease two years ago. I recently heard that more harmful bacteria are found in a person with Crohn's than those without this disease. If this is true, is there anything I can do to change the bacteria in my system?
Susan Maayah, M.D.
Palo Alto Medical Foundation
I've been on birth control for five years. I did not skip a dose, but I'm having mid-cycle bleeding after having unprotected sex. I took vitamin C for a cold and read that excessive amounts can cause birth control to stop working. Is this true?
Taking vitamin C will not interfere with the efficacy of your birth control pill. You should not be concerned about pregnancy unless you missed your pills or started your pack late. If your mid-cycle bleeding i... continue reading about I've been on birth control for five years. I did not skip a dose, but I'm having mid-cycle bleeding after having unprotected sex. I took vitamin C for a cold and read that excessive amounts can cause birth control to stop working. Is this true?
Modern Weng, DO
Palo Alto Medical Foundation
What common medications cause constipation? It seems that ibuprofen affects me.
Constipation is fairly common affliction affecting an estimated 24-50 percent of older adults. The most common medications that may cause constipation are:Narcotic pain medications (e.g Vicodin)Iron supplements... continue reading about What common medications cause constipation? It seems that ibuprofen affects me.
Susan Maayah, M.D.
Palo Alto Medical Foundation
I'm 53 and in menopause. Since perimenopause, my melasma has returned. I had it my 30s due to birth control pills. I'm using TriLuma and am fanatical about sunscreen. I'm Asian and dermatologists have told me laser or other procedures might worsen it.
Melasma is typically caused in women by exposure to estrogens. For this reason, any hormone replacement you are taking that contains estrogen can contribute, so I would refrain from using estrogens. Also, the h... continue reading about I'm 53 and in menopause. Since perimenopause, my melasma has returned. I had it my 30s due to birth control pills. I'm using TriLuma and am fanatical about sunscreen. I'm Asian and dermatologists have told me laser or other procedures might worsen it.
Mark Saleh, M.D.
Palo Alto Medical Foundation
I have neuropathy in both feet and legs. They feel heavy and at night they sometimes burn. My feet feel like I have a second skin, which makes it difficult to wiggle my toes and arch my feet.
Pain from neuropathy can be quite problematic. It is often described as a burning or a "pins and needles" sensation. This pain is often more noticeable at bedtime and can therefore disrupt sleep. The first step... continue reading about I have neuropathy in both feet and legs. They feel heavy and at night they sometimes burn. My feet feel like I have a second skin, which makes it difficult to wiggle my toes and arch my feet.
Ravin Agah, M.D., Ph.D.
Palo Alto Medical Foundation
Since my 20s I've had insomnia. Now in my 40s, the insomnia has been unremitting. When I do sleep, I often wake up drenched. OTC sleep aids and herbal remedies don't help. I exercise and eat a healthy diet. What else should I consider?
Insomnia sometimes can result from an overactive thyroid, sleep apnea, or an enlarged prostate, in addition to stress and anxiety. Make sure that you have been checked for an overactive thyroid, enlarged prosta... continue reading about Since my 20s I've had insomnia. Now in my 40s, the insomnia has been unremitting. When I do sleep, I often wake up drenched. OTC sleep aids and herbal remedies don't help. I exercise and eat a healthy diet. What else should I consider?
Suzanne E. Pertsch, M.D.
Palo Alto Medical Foundation
Is it normal to have tingling and numbness in the fingers sometimes? What causes this? Could it be from a pinched nerve?
It is very normal to have tingling in the hands or fingers on occasion. Most of us know exactly what you are referring to since we have experienced it for ourselves. Tingling fingers can be caused by a nerve th... continue reading about Is it normal to have tingling and numbness in the fingers sometimes? What causes this? Could it be from a pinched nerve?
Robert Altman, M.D.
Palo Alto Medical Foundation
If I have a C-section with my first pregnancy, does that mean I will have to have one for any future pregnancies?
A trial of labor after cesarean section (TOLAC) is reasonable for many women who have undergone a prior C-section. Research indicates that 60-80 percent of women have a successful vaginal birth after having a s... continue reading about If I have a C-section with my first pregnancy, does that mean I will have to have one for any future pregnancies?
Valerie J. Spier, MPH, R.D., CDE
Palo Alto Medical Foundation
Are there some types of fruit that are better for me to eat since I have diabetes?
Enjoy any type of fruit you like but try to follow these three rules:Limit yourself to one serving during a meal or snack.A serving is the amount that would have 15 grams of carbohydrate, about as big as a tenn... continue reading about Are there some types of fruit that are better for me to eat since I have diabetes?
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