In medicine, a fistula (pl. fistulas or fistulae) is an abnormal connection or passageway between two epithelium-lined organs or vessels that normally do not connect. It is generally a disease condition, but a fistula may be surgically created for therapeutic reasons.

Fistulas can develop in various parts of the body. The following list is sorted by the International Statistical Classification of Diseases and Related Health Problems.

Note: in non-medical contexts, the word "fistula" is often used to imply urogenital fistula

Various types of fistulas include:

Although most fistulas are in forms of a tube, some can also have multiple branches.

Various causes of fistula are:

Treatment for fistulae varies depending on the cause and extent of the fistula, but often involves surgical intervention combined with antibiotic therapy.

Typically the first step in treating a fistula is an examination by a doctor to determine the extent and "path" that the fistula takes through the tissue.

In some cases the fistula is temporarily covered, for example a fistula caused by cleft palate is often treated with a palatal obturator to delay the need for surgery to a more appropriate age.

Sachin Gupta is an Indian playwright and theatre director.

Recipient of National Award "Natya Bhushan" ,Sachin Gupta (born 09th March ,1978) is a qualified software engineer. He is the founder and CEO of Chilsag Entertainment Network ,India's leading Media & entertainment company.

In March 2003 he started his most ambitious Venture Chilsag Chillies Theatre Company which has produced Thirteen Original theatre productions written and directed by Sachin Gupta addressing various sensitive and important social issues, even through musicals and comedy theatre productions, has formed a Theatre laboratory & a Drama Therapy centre. Also he has trained more than 300 actors in various Acting programs under the Acting School he began in 2004.

In 2005 he moved to North America to expand his Film & theatre work , staged three successful Off Broadway Shows with American actors & studied Acting at prestigious Lee Strasberg Film Institute,New York & at Fanshawe College, Canada and has learned nuances of Shakespearean acting at the prestigious Emerson College in US.