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Doctor-Reviewed Health Guides: Conditions, Procedures & Health News
Plain-language guides to diseases, conditions and medical procedures, plus the latest health research. Every article is medically reviewed by Dr. Baraa Alnahhal, MD.
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Thoracic Aortic Aneurysm Surgery: Open Repair vs. TEVAR, Risks and Recovery
Thoracic aortic aneurysm surgery is a procedure that repairs a bulge in the chest section of the aorta to lower the risk of a life-threatening rupture. Surgeons use either open repair, which replaces the weak section with a synthetic graft, or TEVAR, a minimally invasive stent graft placed through the groin. Surgery may be recommended above 5.5 centimeters.

Dr. Baraa Alnahhal
Oct 299 min read


Topical Antibiotics: What They Treat, How to Use Them, and When to Get Help
Topical antibiotics are antibacterial medicines applied to the skin, eyes, or ears to kill bacteria or stop them from multiplying at the infection site. They come as ointments, creams, gels, eye drops, and ear drops, and they treat only bacterial infections. Finish the full course, and seek emergency care for signs of spreading infection or sepsis.

Dr. Baraa Alnahhal
Oct 297 min read


Scaling and Root Planing: What a Deep Dental Cleaning Is, What to Expect and How Fast You Recover
Scaling and root planing is a deep dental cleaning that removes plaque, tartar and bacteria from above and below the gumline and smooths the tooth roots. It is the usual first, nonsurgical treatment for mild to moderate gum disease, takes one to two hours under local numbing, and most people return to normal routines the same day.

Dr. Baraa Alnahhal
Oct 297 min read


Tooth Extraction: Procedure, Recovery Timeline, Aftercare and Warning Signs
A tooth extraction is a procedure in which a dentist or oral surgeon removes a tooth from its socket. It is recommended when severe decay, advanced gum disease, a fracture, an impacted tooth, crowding or injury leaves a tooth beyond repair. Most people resume routine activities within 48 to 72 hours, while the jawbone takes several weeks to heal.

Dr. Baraa Alnahhal
Oct 299 min read


Toe Joint Replacement: Surgery, Recovery, and Risks
Toe joint replacement is surgery that removes a damaged toe joint, most often the big toe joint, and replaces it with an artificial joint made of metal, ceramic, or plastic. Surgeons consider it when arthritis, hallux rigidus, or injury causes lasting pain despite nonsurgical care. It aims to relieve pain while keeping the toe movable.

Dr. Baraa Alnahhal
Oct 299 min read


Tonsillectomy: Procedure, Recovery Timeline and Risks Explained
A tonsillectomy is surgery to remove the two tonsils at the back of the throat, usually done under general anesthesia as a same-day procedure lasting about 20 to 30 minutes. It mainly treats sleep-related breathing problems such as sleep apnea and frequent tonsillitis. Most people recover in about two weeks; call a provider for any bleeding or breathing trouble.

Dr. Baraa Alnahhal
Oct 298 min read


TNF Inhibitors: Uses, Types, Side Effects and What to Expect
TNF inhibitors are biologic medicines that block tumor necrosis factor alpha, a protein that drives chronic inflammation. They treat rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, psoriasis, Crohn's disease, ulcerative colitis and uveitis. You take them by self-injection under the skin or by IV infusion. Because they weaken immune defenses, they raise infection risk.

Dr. Baraa Alnahhal
Oct 299 min read


Tommy John Surgery (UCL Reconstruction): Procedure, Risks, and Recovery Timeline
Tommy John surgery is a reconstruction of the ulnar collateral ligament (UCL), the ligament on the inside of the elbow that helps you throw. A surgeon rebuilds the damaged ligament with a tendon graft or, in some cases, an internal brace. Full recovery usually takes about a year or more, and most athletes return to play.

Dr. Baraa Alnahhal
Oct 299 min read


Thyroidectomy: Types, Preparation, Risks and Recovery
A thyroidectomy is surgery to remove all (total) or part (partial) of the thyroid gland, the butterfly-shaped organ in the neck. It treats thyroid cancer, suspicious nodules, goiters that press on the windpipe or food pipe, and an overactive thyroid. It is done under general anesthesia, and full recovery usually takes two to three weeks.

Dr. Baraa Alnahhal
Oct 2910 min read


Therapeutic Phlebotomy: What It Treats, How It Works, and What Recovery Feels Like
Therapeutic phlebotomy is a treatment that removes blood, usually about one pint per session, to lower a dangerously high red blood cell count or too much stored iron. It is mainly used for polycythemia vera and hereditary hemochromatosis. A session feels much like giving blood, lasts 15 minutes to an hour, and blood tests guide how often it repeats.

Dr. Baraa Alnahhal
Oct 299 min read


Testosterone Replacement Therapy (TRT): Benefits, Side Effects, and Who It's For
Testosterone replacement therapy (TRT) is a long-term treatment that uses manufactured testosterone to raise low levels in men with male hypogonadism, a medical condition affecting the testicles, pituitary gland or hypothalamus. It can improve sex drive, energy, mood and bone density, but it does not cure the cause and needs regular blood tests.

Dr. Baraa Alnahhal
Oct 2910 min read


Thymectomy: Why It's Done, How It Works, and What Recovery Looks Like
A thymectomy is surgery to remove the thymus gland and any thymic tumor from the upper chest. It mainly treats myasthenia gravis and thymic tumors such as thymoma. Surgeons use open or minimally invasive approaches. Pain is usually mild and short-lived, but myasthenia gravis benefits can take a year or more to appear.

Dr. Baraa Alnahhal
Oct 298 min read


Tenotomy: What It Is, Types, Risks, and Recovery
Tenotomy is a procedure that treats a painful or damaged tendon by dividing or releasing it. A provider either uses a needle through the skin, often guided by ultrasound, or makes small incisions to cut or remove part of the tendon. Tenotomy is usually offered after rest, physical therapy, NSAIDs, and steroid injections haven't relieved symptoms.

Dr. Baraa Alnahhal
Oct 299 min read


Thrombolytics: How Clot-Busting Drugs Work, Types, Timing and Risks
Thrombolytics are emergency clot-busting drugs that break down fibrin, the protein holding a blood clot together, to restore blood flow. Doctors use them for stroke, heart attack and pulmonary embolism, given by IV or catheter, ideally within 4.5 hours of stroke symptoms starting. Bleeding is the main risk, so call emergency services at the first warning signs.

Dr. Baraa Alnahhal
Oct 298 min read


Thrombolytic Therapy Procedure: Types, What to Expect, Risks, and Recovery
Thrombolytic therapy is a treatment that uses clot-dissolving medicines, given through an IV line or a catheter, to restore blood flow. It is used for heart attack, ischemic stroke, pulmonary embolism, deep vein thrombosis, and peripheral artery disease. In emergencies, it works best when started within two hours of symptoms. The main risk is internal bleeding.

Dr. Baraa Alnahhal
Oct 299 min read


Teeth Retainer: Types, How Long to Wear One, and How to Care for It
A teeth retainer is a custom-made device worn over the teeth to hold them in their correct position after braces or clear aligners. Removable types are made of wire or plastic, while fixed types are bonded to the front upper or lower teeth. Most people wear one full-time for at least four to six months, then nightly for life.

Dr. Baraa Alnahhal
Oct 299 min read


Teeth Braces: Types, Timeline, Pain Relief and Aftercare Guide
Braces are orthodontic devices that use mild, constant pressure to move teeth into their proper positions over time. They correct crooked, crowded or gapped teeth and bite problems called malocclusion. Options include metal, ceramic, lingual and self-ligating braces, plus clear aligners. Treatment averages about two years, and everyone needs a retainer afterward.

Dr. Baraa Alnahhal
Oct 299 min read


Tdap Vaccine: Who Needs It, When to Get It, and What to Expect
The Tdap vaccine is a shot that helps protect against three bacterial infections: tetanus, diphtheria and pertussis (whooping cough). It is recommended for children 7 and older, preteens, adults and during every pregnancy, with a Td or Tdap booster every 10 years. Most side effects are mild, such as a sore arm, and pass within days.

Dr. Baraa Alnahhal
Oct 297 min read


Oxygen Tank: Types, How to Use It Safely, and When to Call a Doctor
An oxygen tank is a medical device that stores supplemental oxygen for people with a lung condition or trouble breathing. The three main types are compressed oxygen, liquid oxygen, and oxygen concentrators. A prescription is required, and tanks must stay at least 10 feet from flames, smoking, and heat sources.

Dr. Baraa Alnahhal
Oct 2910 min read


Targeted Therapy for Cancer: How It Works, Types, Side Effects and Outlook
Targeted therapy is a cancer treatment that aims at the genetic changes, or mutations, that turn healthy cells into cancer cells, while trying to spare healthy cells. It is used most often for breast, lung and prostate cancer, is given as a pill, shot or IV, and can cause side effects such as diarrhea, rash and high blood pressure.

Dr. Baraa Alnahhal
Oct 298 min read


TAVR (Transcatheter Aortic Valve Replacement): Procedure, Risks and Recovery
Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure that replaces a narrowed aortic valve without open-heart surgery. A doctor threads a thin tube through an artery, usually in the groin, and places a new valve inside the old one. It treats aortic stenosis, takes about one to two hours, and most people go home within a day.

Dr. Baraa Alnahhal
Oct 299 min read


Orthokeratology (Ortho-K): How Overnight Lenses Reshape Your Vision
Orthokeratology (ortho-k) is a vision treatment that uses rigid gas permeable contact lenses worn overnight to gently flatten and reshape the cornea, so you can see clearly during the day without glasses or contacts. It mainly treats nearsightedness, can slow fast-worsening myopia in children, and requires nightly wear because the effect fades. Eye infection is the main risk.

Dr. Baraa Alnahhal
Oct 299 min read


Oxygen Concentrator: How It Works, Types, Who Needs One, and Safety Tips
An oxygen concentrator is a prescribed medical device that pulls in room air, filters out nitrogen, and delivers 90% to 95% pure oxygen through a nasal cannula or mask. It helps people with lung or heart conditions breathe easier. Stationary models plug into the wall; portable ones run on batteries. Keep it at least 10 feet from flames and heat.

Dr. Baraa Alnahhal
Oct 2910 min read


Tamoxifen: How It Works, Side Effects, and How Long You Take It
Tamoxifen is a daily hormone therapy, taken as a pill or liquid, that blocks estrogen in breast tissue. It treats hormone receptor-positive breast cancer, lowers the chance of cancer returning or appearing in the other breast, and can help prevent breast cancer in high-risk people. Treatment usually lasts 5 to 10 years.

Dr. Baraa Alnahhal
Oct 298 min read
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