
Narrow stools: Should I be concerned? - Mayo Clinic
Jan 11, 2024 · What causes narrow stools? Should I be concerned? Narrow stools that happen now and then probably are harmless. But in some cases, narrow stools — especially if pencil thin — may be a …
Spinal stenosis - Symptoms and causes - Mayo Clinic
Jun 27, 2024 · The most common cause of spinal stenosis is wear-and-tear damage in the spine related to arthritis. People who have serious spinal stenosis may need surgery. Surgery can create more …
Renal artery stenosis - Symptoms and causes - Mayo Clinic
Jul 12, 2025 · Renal artery stenosis is when one or more arteries that carry blood to the kidneys narrow. These are called the renal arteries. Having narrowed renal arteries means the kidneys don't get …
Glaucoma - Symptoms and causes - Mayo Clinic
Nov 5, 2024 · Regular eye exams may catch glaucoma early and save your eyesight. Find out about symptoms and treatment for this vision-stealing eye condition.
Dysphagia - Symptoms and causes - Mayo Clinic
Jul 31, 2024 · Growing tumors steadily narrow the esophagus. Foreign bodies. Sometimes food or another object can partially block the throat or esophagus. Older adults with dentures and people …
Asthma - Symptoms and causes - Mayo Clinic
Mar 8, 2025 · Asthma is a condition in which your airways narrow and swell and may produce extra mucus. This can make breathing difficult and trigger coughing, a whistling sound (wheezing) when …
Valvuloplasty - Type - Mayo Clinic
Apr 16, 2024 · Valvuloplasty A valvuloplasty is a treatment to repair a heart valve that has a narrowed opening. Narrowing of a heart valve is called valve stenosis. Four heart valves — the aortic, mitral, …
Urethral stricture - Symptoms and causes - Mayo Clinic
Dec 23, 2025 · Causes Scar tissue, which can narrow the urethra, can be due to: A medical procedure that involves putting a tool, such as an endoscope, into the urethra. A tube that's put into the urethra …
Vitiligo - Diagnosis & treatment - Mayo Clinic
Aug 27, 2025 · Possible side effects of narrow band ultraviolet B therapy include redness, itching and burning. These side effects usually clear up within a few hours after treatment. Combining psoralen …
Aortic valve stenosis - Symptoms and causes - Mayo Clinic
May 10, 2025 · Scar tissue can narrow the aortic valve opening. It also may make a rough surface on which calcium deposits can collect. Risk factors Risk factors of aortic valve stenosis include: Older …