The quickest solution to constipation for 90 year olds is the use of corked gel, which is composed of glycerin and can lubricate the intestines. 90 year olds have weaker intestinal mucosa and should do a good job of lubrication when using corked gel, which usually takes 1-2 minutes to last after squeezing in. If the elderly constipation is more serious, you can continue for 5 minutes and then make the elderly defecate, usually with better results. For the elderly over 90 years old, intestinal peristalsis will slow down with the decline of the body, so you can eat sesame oil in the diet, which is conducive to promoting intestinal peristalsis. In addition, in the diet of the elderly, we should pay attention to the intake of vegetables, to ensure that the daily intake of sufficient leafy greens, conducive to the relief of constipation.