Parts Used: seed.                                                                                                    

Uses: colics. vomiting.                                                 

Origin: Barzil. 

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Leaf and Seed: In French Guiana, an emulsion of seeds and crushed leaves makes an excellent cataplasm applied warm for intestinal inflammation.

Fruit: Pulp is refreshing; juice used as a refreshing wash.

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Origin:
Cultivated throughout India on sandy river beds, up to an altitude of  1,500 m

Action:
Pulp—cooling and refreshing, a rich source of pectin, carotenoids, surcose (as major sugar). Fruit juice is prescribed in strangury and urinary complaints, also in hepatic congestion and intestinal catarrh.
Seeds—cooling, purgative, diuretic, demulcent (used in urinary  infections).
Leaves— febrifuge. The pericarp is given in diarrhoea.
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Origin

Jamaica

Folk medicinal uses

The fruit of the water melon is regarded as cooling. "It is good for anyone whose skin comes up in weals when the time is hot". The fruit contains 92 to 96 per cent water. sugar and traces of citric acid. It is easily digested and early writers considered it useful for fever patients. Browne reported the use of the seeds in cooling and nutritive preparations: they contain about 27 per cent fat. In native African medicine. the fruit and seed are credited with diuretic properties and the juice of the roasted fruit is thought to be vermifuge. The seeds are used as a masticatory.

1) Bueno, Regina Norlene, et al., Acta bot. bras. vol. 19, no. 1, 2005. p.-- 39-44.

2) Robertt, A., et al.. Medicinal Plants of the Guianas (Guyana, Suriname, French Guyana)/Smithsonian NMNH. cited online: 17-08-2017.

3) Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p. 836.

4) Asprey, G.F; Phylis Thornton/ Medicinal plants of Jamaica. Parts III & IV. – p. 55.