1. Sambandha of Sun and Moon in watery sign gives bronchitis.
2. Bad affliction of 4th house also gives this disease.
3. Lagna a watery sign and lagnesh in a trik bhava.
4. Exchange of 4th lord and 6th lord involving watery sign.
5. Saturn and Mars in lagna in a watery sign.
6. Lagnesh conjuncts Saturn in a trik bhava.