There are basically two types of Doṣagati which are as below

• Doṣas moving from Koṣṭha to Śākhā
• Doṣas moving from Śākhā to Koṣṭha

Doṣas moving from Koṣṭha to Śākhā

व्यायामादूष्मणस्तैक्ष्ण्यादहिताचरणादपि|

कोष्ठाच्छाखास्थिमर्माणि द्रुतत्वान्मारुतस्य च||१७||

Doṣas migrate from Koṣṭha to Śākhā and Asthi sandhis due to Vyayāma, Ūṣma (increase in body temperature by heat), improper regimen and increased propulsive velocity of Vāta.

व्यायामादूष्मणस्तैक्ष्ण्याद्धितस्यानवचारणात्|

कोष्ठाच्छाखा मला यान्ति द्रुतत्वान्मारुतस्य च||३१||

According to Caraka Vyayāma, Ūṣma and Tīkṣṇa dravya sevāna, Ahitā or atimātra sevāna, Māruta drutatva are the causes of doṣa moving from Koṣṭha to Śākhā.

तत्र व्यायामक्षोभात् कोष्ठं परित्यज्य शाखां मला यान्ति, ऊष्मणो वह्नेस्तीक्ष्णत्वाद्विलायिता दोषाः शाखां यान्ति, हितस्यानवचारणयाऽहितसेवयाऽतिसेवयाऽतिमात्रवृद्धो दोषो जलापूरवद्वृद्धः स्वस्थानमाप्लाव्य स्थानान्तरं यातीति युक्तम्| द्रुतत्वान्मारुतस्येति चलत्वाद्वायोर्वायुना क्षिप्तो यातीत्यर्थः

According to Cakrapāṇi, Vyayāma causes mala kṣobha and the doṣas move from Koṣṭha to Śākhā, Ūṣma and Tīkṣṇa guṇa increases Agni which in turn causes the doṣa to move from Koṣṭha to Śākhā. Hitasya Anavacāraṇata or following Ahitā āhāra and vihāra are also considered one reason for the same and finally the aggravated or increased propulsive velocity of Vāta throws out the doṣa from Śākhā to Koṣṭha.

Doṣas moving from Śākhā to Koṣṭha 

दोषा यान्तितथा तेभ्यः स्रोतोमुखविशोधनात्|

वृद्ध्याऽभिष्यन्दनात्पाकात्कोष्ठं वायोश्च निग्रहात्||१८||

The doṣas return back from Śākhā to Koṣṭha due to opening up of blocked srotases, quantitative increase of doṣas, their liquefaction, transformation and loss of inductive power of Vāta.

वृद्ध्या विष्यन्दनात् पाकात् स्रोतोमुखविशोधनात्|

शाखा मुक्त्वा मलाः कोष्ठं यान्ति वायोश्च निग्रहात्||३३||

Vṛddhi or increase in the volume of doṣa in śākhā, Viṣyandana or Vilayana or liquefaction of doṣas which naturally move towards Koṣṭha, Pāka, Sroto mukha viśodhana, Vāyu nigrahat are the factors responsible for the movement of doṣa from śākhā to koṣṭha which is usually done in the Pūrvakarma of Śodhana.

पाकादिति पक्वो दोषोऽबद्धत्वेनैव निम्नं कोष्ठं याति स्रोतोमुखविशोधनादिति अवरोधकापगमात्| वायोर्निग्रहादिति क्षेप्तुर्वायोर्निग्रहात् प्राकृतं स्थानं कोष्ठं याति|

According to Cakrapāṇi Pākat means the doṣa which are initially saāma in nature, achieve nirāmavasthā and it leads to abaddhata or becoming free from śākhā and naturally moving towards koṣṭha. Srota mukha Viśodhana is removal of obstruction of the srotases and Vāyu nigrahaṇa means pacification of aggravated vāta which thereby helps in returning of doṣas from śākhā to koṣṭha.

In the aspect of Śodhana Vṛddhi and Viṣyandana is achieved by Snehana and Svedana, Pāka is achieved by Pācana and Svedana, Srotomukha Viśodhana is achieved by Svedana and Vāyu Nigrahaṇa is achieved by Snehana and Svedana.