Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Polycystic Ovary Syndrome
Polycystic ovary syndrome (PCOS) is a common gynecological endocrine disorder characterized primarily by chronic anovulation and hyperandrogenism. It commonly affects adolescent and reproductive-aged women. Key symptoms include hirsutism, obesity, menstrual irregularities, polycystic changes in both ovaries, and infertility.
View detailsInfertility
Infertility may be diagnosed if a couple has regular, unprotected sexual intercourse for more than one year and still fails to conceive. The causes of infertility can be complex and diverse, potentially stemming from issues in the reproductive system or hormone levels of either partner. When the cause lies with the female, it is termed female infertility; when it lies with the male, it is termed male infertility. Currently, the incidence of infertility in China is 6% to 15%, meaning approximately 1 in 10 couples may experience infertility. This proportion is likely to continue to increase as more people choose to marry and have children later in life.
View detailsMenstrual disorders
Menstruation is a physiological phenomenon in women, characterized by periodic vaginal bleeding. The interval between two bleeding episodes is approximately one month, and each episode lasts about 2 to 8 days. If there is a change in the regularity of menstruation, it is called menstrual irregularity. The main symptoms include menstruation occurring more than 7 days earlier or later than expected, or excessive or scanty menstrual bleeding.
Vasculitis
Thromboangiitis obliterans (TAO), also known as Buerger's disease, is a chronic, recurrent, inflammatory, and segmental occlusive disease of the blood vessels, primarily affecting the small and medium-sized arteries and veins of the distal extremities. This disease is the most common type of chronic peripheral vascular disease in China, predominantly affecting male smokers, especially young and middle-aged men. The main symptoms include limb ischemia, severe pain, intermittent claudication, weakened or absent dorsalis pedis artery pulsation, and migratory superficial arteritis. In severe cases, limb ulcers or necrosis may occur.
View detailsAnorectal diseases
A public condition summary is being prepared.
View detailsRectal prolapse
Rectal prolapse refers to the downward displacement of the anal canal, rectum, or even the lower sigmoid colon, either partial or full-thickness, protruding outside the anus. This condition is common in children, the elderly, and pregnant women. The main symptom is the protrusion of the rectal mucosa from the anus, which may be accompanied by a feeling of incomplete defecation, a sensation of prolapse, and fecal incontinence.
View detailsAnal fissure
Anal fissure is a tear or crack in the skin of the anal canal, most commonly located in the posterior midline of the anal canal. The incidence of anal fissure ranks second only to hemorrhoids among anorectal diseases and can occur at any age, but is more common in young and middle-aged adults. The typical symptoms of anal fissure are severe anal pain, bloody stools, and constipation.
View detailsPerianal abscess
Perianal abscess, also known as anorectal abscess, is an acute suppurative infection occurring within or around the anorectal tissues. The infection spreads to the loose adipose connective tissue in the perianal spaces, forming an abscess. Based on the location of the abscess, it can be classified into superficial perianal abscess and deep perianal abscess. The main symptom of superficial perianal abscess is persistent throbbing pain, making it difficult to sit comfortably. The main symptoms of deep perianal abscess are distending pain, fever, and general discomfort. This condition can occur at any age, with a higher incidence in males than in females.
View detailsAnal fistula
Anal fistula, short for anorectal fistula, is a chronic, infectious tract connecting the anal canal or rectum to the perianal skin. It is a sequela of ruptured or incised anorectal abscesses. The main symptoms of anal fistula include recurrent discharge from the fistula opening, often accompanied by perianal wetness and itching. Some patients may also experience pain.
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