Answer

Yes, generally you can bathe while doing Ekasana.

Explanation

In Jain practice, Ekasana mainly means eating only once in one sitting, with discipline and restraint. Bathing does not break Ekasana.

However, many people follow additional family, temple, or guru-given rules during tapasya, such as:

• bathing before doing samayik, puja, or pratikraman,
• avoiding unnecessary comfort or luxury,
• maintaining cleanliness and simplicity.

So a simple bath for cleanliness is acceptable, unless your guru, family tradition, or specific vow has instructed otherwise.

Spiritual Understanding

The main purpose of Ekasana is sanyam—self-control over food, taste, desire, and attachment. Bathing should be done with simplicity, not for indulgence or comfort.

Takeaway

Yes, you may bathe during Ekasana, but keep it simple and follow any specific rules given by your guru or tradition.